2122111122012 has 36 divisors (see below), whose sum is σ = 6130543242096. Its totient is φ = 606317463360.

The previous prime is 2122111121989. The next prime is 2122111122029. The reversal of 2122111122012 is 2102211112212.

2122111122012 is a `hidden beast` number, since 212 + 211 + 11 + 220 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2122111122012² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4210537689 + ... + 4210538192.

It is an arithmetic number, because the mean of its divisors is an integer number (170292867836).

Almost surely, 2^{2122111122012} is an apocalyptic number.

It is an amenable number.

2122111122012 is an abundant number, since it is smaller than the sum of its proper divisors (4008432120084).

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

2122111122012 is a wasteful number, since it uses less digits than its factorization.

2122111122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421075898 (or 8421075893 counting only the distinct ones).

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

Adding to 2122111122012 its reverse (2102211112212), we get a palindrome (4224322234224).

The spelling of 2122111122012 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, twelve".