22111020120120 has 128 divisors (see below), whose sum is σ = 70237120723200. Its totient is φ = 5549265340416.

The previous prime is 22111020120071. The next prime is 22111020120131. The reversal of 22111020120120 is 2102102011122.

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 22111020120120.

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, 76369791 + ... + 76658769.

It is an arithmetic number, because the mean of its divisors is an integer number (548727505650).

Almost surely, 2^{22111020120120} is an apocalyptic number.

22111020120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111020120120 is an abundant number, since it is smaller than the sum of its proper divisors (48126100603080).

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

22111020120120 is a wasteful number, since it uses less digits than its factorization.

22111020120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326517 (or 326513 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111020120120 its reverse (2102102011122), we get a palindrome (24213122131242).

The spelling of 22111020120120 in words is "twenty-two trillion, one hundred eleven billion, twenty million, one hundred twenty thousand, one hundred twenty".