20012112012122 has 48 divisors (see below), whose sum is σ = 31817035875240. Its totient is φ = 9437787127296.

The previous prime is 20012112012107. The next prime is 20012112012133. The reversal of 20012112012122 is 22121021121002.

It can be written as a sum of positive squares in 4 ways, for example, as 18726226319161 + 1285885692961 = 4327381^2 + 1133969^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20012112012122.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376643654 + ... + 376696782.

Almost surely, 2^{20012112012122} is an apocalyptic number.

20012112012122 is a deficient number, since it is larger than the sum of its proper divisors (11804923863118).

20012112012122 is a wasteful number, since it uses less digits than its factorization.

20012112012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58127 (or 58104 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20012112012122 its reverse (22121021121002), we get a palindrome (42133133133124).

The spelling of 20012112012122 in words is "twenty trillion, twelve billion, one hundred twelve million, twelve thousand, one hundred twenty-two".