20120001111012 has 24 divisors (see below), whose sum is σ = 51214548282912. Its totient is φ = 6096970033600.

The previous prime is 20120001110969. The next prime is 20120001111029. The reversal of 20120001111012 is 21011110002102.

It is a super-2 number, since 2×20120001111012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 76212125289 + ... + 76212125552.

It is an arithmetic number, because the mean of its divisors is an integer number (2133939511788).

Almost surely, 2^{20120001111012} is an apocalyptic number.

20120001111012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120001111012 is an abundant number, since it is smaller than the sum of its proper divisors (31094547171900).

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

20120001111012 is a wasteful number, since it uses less digits than its factorization.

20120001111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152424250859 (or 152424250857 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20120001111012 its reverse (21011110002102), we get a palindrome (41131111113114).

The spelling of 20120001111012 in words is "twenty trillion, one hundred twenty billion, one million, one hundred eleven thousand, twelve".