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120202221211220 = 2256010111060561
BaseRepresentation
bin11011010101001011000010…
…101100100100111001010100
3120202121012221110122221102002
4123111023002230210321110
5111223343122112224340
61103352045455134432
734214216045132501
oct3325130254447124
9522535843587362
10120202221211220
1135333526232265
1211593bb4814418
13520c036995cc5
142197b661504a8
15dd6b07ad6715
hex6d52c2b24e54

120202221211220 has 12 divisors (see below), whose sum is σ = 252424664543604. Its totient is φ = 48080888484480.

The previous prime is 120202221211211. The next prime is 120202221211231. The reversal of 120202221211220 is 22112122202021.

It can be written as a sum of positive squares in 2 ways, for example, as 57397927604164 + 62804293607056 = 7576142^2 + 7924916^2 .

It is a super-2 number, since 2×1202022212112202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6010111060561 = 120202221211220 / (1 + 2 + 0 + 2 + 0 + 2 + 2 + 2 + 1 + 2 + 1 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 120202221211192 and 120202221211201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005055530261 + ... + 3005055530300.

It is an arithmetic number, because the mean of its divisors is an integer number (21035388711967).

Almost surely, 2120202221211220 is an apocalyptic number.

120202221211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202221211220 is an abundant number, since it is smaller than the sum of its proper divisors (132222443332384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120202221211220 is a wasteful number, since it uses less digits than its factorization.

120202221211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010111060570 (or 6010111060568 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 120202221211220 its reverse (22112122202021), we get a palindrome (142314343413241).

The spelling of 120202221211220 in words is "one hundred twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6010111060561 12020222121122 24040444242244 30050555302805 60101110605610 120202221211220