12211012210122 has 72 divisors (see below), whose sum is σ = 30158122944768. Its totient is φ = 3700306712520.

The previous prime is 12211012210099. The next prime is 12211012210127. The reversal of 12211012210122 is 22101221011221.

12211012210122 is a `hidden beast` number, since 1 + 221 + 101 + 221 + 0 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12211012210095 and 12211012210104.

It is not an unprimeable number, because it can be changed into a prime (12211012210127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 103765738 + ... + 103883349.

Almost surely, 2^{12211012210122} is an apocalyptic number.

12211012210122 is an abundant number, since it is smaller than the sum of its proper divisors (17947110734646).

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

12211012210122 is a wasteful number, since it uses less digits than its factorization.

12211012210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207649126 (or 207649103 counting only the distinct ones).

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

Adding to 12211012210122 its reverse (22101221011221), we get a palindrome (34312233221343).

The spelling of 12211012210122 in words is "twelve trillion, two hundred eleven billion, twelve million, two hundred ten thousand, one hundred twenty-two".