12210111211122 has 96 divisors (see below), whose sum is σ = 29804031601344. Its totient is φ = 3580142716800.

The previous prime is 12210111211117. The next prime is 12210111211147. The reversal of 12210111211122 is 22111211101221.

It is a happy number.

12210111211122 is a `hidden beast` number, since 1 + 221 + 0 + 111 + 211 + 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 = 12210111211095 and 12210111211104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3278088 + ... + 5930099.

It is an arithmetic number, because the mean of its divisors is an integer number (310458662514).

Almost surely, 2^{12210111211122} is an apocalyptic number.

12210111211122 is an abundant number, since it is smaller than the sum of its proper divisors (17593920390222).

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

12210111211122 is a wasteful number, since it uses less digits than its factorization.

12210111211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208424 (or 9208421 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12210111211122 its reverse (22111211101221), we get a palindrome (34321322312343).

The spelling of 12210111211122 in words is "twelve trillion, two hundred ten billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-two".