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120211110220 = 2256010555511
BaseRepresentation
bin110111111110100100…
…0111111100101001100
3102111021201102010021111
41233331020333211030
53432143021011340
6131120233141404
711453641402045
oct1577510774514
9374251363244
10120211110220
1146a88046383
121b36a55a864
13b449b61666
145b653bb8cc
1531d87a6aea
hex1bfd23f94c

120211110220 has 12 divisors (see below), whose sum is σ = 252443331504. Its totient is φ = 48084444080.

The previous prime is 120211110199. The next prime is 120211110223. The reversal of 120211110220 is 22011112021.

It is a super-2 number, since 2×1202111102202 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120211110220.

It is not an unprimeable number, because it can be changed into a prime (120211110223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005277736 + ... + 3005277775.

It is an arithmetic number, because the mean of its divisors is an integer number (21036944292).

Almost surely, 2120211110220 is an apocalyptic number.

120211110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120211110220 is an abundant number, since it is smaller than the sum of its proper divisors (132232221284).

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

120211110220 is a wasteful number, since it uses less digits than its factorization.

120211110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010555520 (or 6010555518 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120211110220 its reverse (22011112021), we get a palindrome (142222222241).

The spelling of 120211110220 in words is "one hundred twenty billion, two hundred eleven million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6010555511 12021111022 24042222044 30052777555 60105555110 120211110220