12212100020122 has 16 divisors (see below), whose sum is σ = 18539300016360. Its totient is φ = 6032678625792.

The previous prime is 12212100020033. The next prime is 12212100020149. The reversal of 12212100020122 is 22102000121221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6318280477161 + 5893819542961 = 2513619^2 + 2427719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12212100020096 and 12212100020105.

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, 86248497 + ... + 86389972.

Almost surely, 2^{12212100020122} is an apocalyptic number.

12212100020122 is a deficient number, since it is larger than the sum of its proper divisors (6327199996238).

12212100020122 is a wasteful number, since it uses less digits than its factorization.

12212100020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172638897.

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

Adding to 12212100020122 its reverse (22102000121221), we get a palindrome (34314100141343).

The spelling of 12212100020122 in words is "twelve trillion, two hundred twelve billion, one hundred million, twenty thousand, one hundred twenty-two".