1020120011112 has 32 divisors (see below), whose sum is σ = 2557029074400. Its totient is φ = 339142797504.

The previous prime is 1020120011111. The next prime is 1020120011137. The reversal of 1020120011112 is 2111100210201.

It is a super-2 number, since 2×1020120011112² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1020120011111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56066103 + ... + 56084294.

It is an arithmetic number, because the mean of its divisors is an integer number (79907158575).

Almost surely, 2^{1020120011112} is an apocalyptic number.

1020120011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020120011112 is an abundant number, since it is smaller than the sum of its proper divisors (1536909063288).

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

1020120011112 is a wasteful number, since it uses less digits than its factorization.

1020120011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112150785 (or 112150781 counting only the distinct ones).

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

Adding to 1020120011112 its reverse (2111100210201), we get a palindrome (3131220221313).

The spelling of 1020120011112 in words is "one trillion, twenty billion, one hundred twenty million, eleven thousand, one hundred twelve".