111011220120012 has 24 divisors (see below), whose sum is σ = 259237976046336. Its totient is φ = 36973483501968.

The previous prime is 111011220119957. The next prime is 111011220120061. The reversal of 111011220120012 is 210021022110111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111011220119973 and 111011220120000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3782051968 + ... + 3782081319.

It is an arithmetic number, because the mean of its divisors is an integer number (10801582335264).

Almost surely, 2^{111011220120012} is an apocalyptic number.

111011220120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111011220120012 is an abundant number, since it is smaller than the sum of its proper divisors (148226755926324).

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

111011220120012 is a wasteful number, since it uses less digits than its factorization.

111011220120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7564134517 (or 7564134515 counting only the distinct ones).

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

Adding to 111011220120012 its reverse (210021022110111), we get a palindrome (321032242230123).

The spelling of 111011220120012 in words is "one hundred eleven trillion, eleven billion, two hundred twenty million, one hundred twenty thousand, twelve".