111220002120012 has 24 divisors (see below), whose sum is σ = 259619827202736. Its totient is φ = 37058121336768.

The previous prime is 111220002119999. The next prime is 111220002120023. The reversal of 111220002120012 is 210021200022111.

It is a junction number, because it is equal to n+sod(n) for n = 111220002119973 and 111220002120000.

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, 1901557443 + ... + 1901615930.

It is an arithmetic number, because the mean of its divisors is an integer number (10817492800114).

Almost surely, 2^{111220002120012} is an apocalyptic number.

111220002120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111220002120012 is an abundant number, since it is smaller than the sum of its proper divisors (148399825082724).

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

111220002120012 is a wasteful number, since it uses less digits than its factorization.

111220002120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803175817 (or 3803175815 counting only the distinct ones).

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

Adding to 111220002120012 its reverse (210021200022111), we get a palindrome (321241202142123).

The spelling of 111220002120012 in words is "one hundred eleven trillion, two hundred twenty billion, two million, one hundred twenty thousand, twelve".