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120221121022220 = 2256011056051111
BaseRepresentation
bin11011010101011100101001…
…001101101000100100001100
3120202200000201121222211002002
4123111130221031220210030
5111224200323440202340
61103404453123451432
734215455310645341
oct3325345115504414
9522600647884062
10120221121022220
1135340544727a79
12115977aa226b78
135210a59454c1a
142198a3a2887c8
15dd7361e80715
hex6d572936890c

120221121022220 has 12 divisors (see below), whose sum is σ = 252464354146704. Its totient is φ = 48088448408880.

The previous prime is 120221121022207. The next prime is 120221121022267. The reversal of 120221121022220 is 22220121122021.

It is a super-4 number, since 4×1202211210222204 (a number of 57 digits) contains 4444 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: 6011056051111 = 120221121022220 / (1 + 2 + 0 + 2 + 2 + 1 + 1 + 2 + 1 + 0 + 2 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 120221121022192 and 120221121022201.

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, 3005528025536 + ... + 3005528025575.

It is an arithmetic number, because the mean of its divisors is an integer number (21038696178892).

Almost surely, 2120221121022220 is an apocalyptic number.

120221121022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221121022220 is an abundant number, since it is smaller than the sum of its proper divisors (132243233124484).

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

120221121022220 is a wasteful number, since it uses less digits than its factorization.

120221121022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011056051120 (or 6011056051118 counting only the distinct ones).

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

Adding to 120221121022220 its reverse (22220121122021), we get a palindrome (142441242144241).

The spelling of 120221121022220 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6011056051111 12022112102222 24044224204444 30055280255555 60110560511110 120221121022220