120121120111220 has 96 divisors (see below), whose sum is σ = 277466530924800. Its totient is φ = 43479056738304.

The previous prime is 120121120111217. The next prime is 120121120111271. The reversal of 120121120111220 is 22111021121021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3495749 + ... + 15889068.

It is an arithmetic number, because the mean of its divisors is an integer number (2890276363800).

Almost surely, 2^{120121120111220} is an apocalyptic number.

120121120111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121120111220 is an abundant number, since it is smaller than the sum of its proper divisors (157345410813580).

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

120121120111220 is a wasteful number, since it uses less digits than its factorization.

120121120111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19385577 (or 19385575 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120121120111220 its reverse (22111021121021), we get a palindrome (142232141232241).

The spelling of 120121120111220 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty".