120211011011220 has 192 divisors, whose sum is σ = 373864813056000. Its totient is φ = 28722311506944.

The previous prime is 120211011011207. The next prime is 120211011011257. The reversal of 120211011011220 is 22110110112021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120211011011220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23423200 + ... + 28090359.

It is an arithmetic number, because the mean of its divisors is an integer number (1947212568000).

Almost surely, 2^{120211011011220} is an apocalyptic number.

120211011011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120211011011220 is an abundant number, since it is smaller than the sum of its proper divisors (253653802044780).

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

120211011011220 is a wasteful number, since it uses less digits than its factorization.

120211011011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51513702 (or 51513700 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120211011011220 its reverse (22110110112021), we get a palindrome (142321121123241).

The spelling of 120211011011220 in words is "one hundred twenty trillion, two hundred eleven billion, eleven million, eleven thousand, two hundred twenty".