20112111220000 has 120 divisors (see below), whose sum is σ = 50531553426816. Its totient is φ = 7873677216000.

The previous prime is 20112111219989. The next prime is 20112111220027. The reversal of 20112111220000 is 2211121102.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9757932 + ... + 11637931.

Almost surely, 2^{20112111220000} is an apocalyptic number.

20112111220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112111220000 is an abundant number, since it is smaller than the sum of its proper divisors (30419442206816).

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

20112111220000 is an equidigital number, since it uses as much as digits as its factorization.

20112111220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21395940 (or 21395917 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20112111220000 its reverse (2211121102), we get a palindrome (20114322341102).

The spelling of 20112111220000 in words is "twenty trillion, one hundred twelve billion, one hundred eleven million, two hundred twenty thousand".