20122100220112 has 40 divisors (see below), whose sum is σ = 43333270734240. Its totient is φ = 8973835428480.

The previous prime is 20122100220107. The next prime is 20122100220133. The reversal of 20122100220112 is 21102200122102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 1078576662 + ... + 1078595317.

It is an arithmetic number, because the mean of its divisors is an integer number (1083331768356).

Almost surely, 2^{20122100220112} is an apocalyptic number.

20122100220112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20122100220112 is an abundant number, since it is smaller than the sum of its proper divisors (23211170514128).

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

20122100220112 is a wasteful number, since it uses less digits than its factorization.

20122100220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157172051 (or 2157172045 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122100220112 its reverse (21102200122102), we get a palindrome (41224300342214).

The spelling of 20122100220112 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twenty thousand, one hundred twelve".