210122111112112 has 20 divisors (see below), whose sum is σ = 407111835415720. Its totient is φ = 105060992295168.

The previous prime is 210122111112103. The next prime is 210122111112157. The reversal of 210122111112112 is 211211111221012.

It is a self number, because there is not a number n which added to its sum of digits gives 210122111112112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35195464 + ... + 40730392.

It is an arithmetic number, because the mean of its divisors is an integer number (20355591770786).

Almost surely, 2^{210122111112112} is an apocalyptic number.

It is an amenable number.

210122111112112 is a deficient number, since it is larger than the sum of its proper divisors (196989724303608).

210122111112112 is a wasteful number, since it uses less digits than its factorization.

210122111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907620 (or 7907614 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 210122111112112 its reverse (211211111221012), we get a palindrome (421333222333124).

The spelling of 210122111112112 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".