20122112112012 has 48 divisors (see below), whose sum is σ = 52566671203200. Its totient is φ = 6656169396240.

The previous prime is 20122112111993. The next prime is 20122112112031. The reversal of 20122112112012 is 21021121122102.

20122112112012 is a `hidden beast` number, since 201 + 221 + 1 + 211 + 20 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (20122112111993) and next prime (20122112112031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711115062 + ... + 711143357.

It is an arithmetic number, because the mean of its divisors is an integer number (1095138983400).

Almost surely, 2^{20122112112012} is an apocalyptic number.

It is an amenable number.

20122112112012 is an abundant number, since it is smaller than the sum of its proper divisors (32444559091188).

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

20122112112012 is a wasteful number, since it uses less digits than its factorization.

20122112112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422258563 (or 1422258555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20122112112012 its reverse (21021121122102), we get a palindrome (41143233234114).

The spelling of 20122112112012 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twelve thousand, twelve".