212210112102102 has 12 divisors (see below), whose sum is σ = 459788576221260. Its totient is φ = 70736704034028.

The previous prime is 212210112102097. The next prime is 212210112102187. The reversal of 212210112102102 is 201201211012212.

212210112102102 is a `hidden beast` number, since 21 + 2 + 210 + 11 + 210 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11789450672339 = 212210112102102 / (2 + 1 + 2 + 2 + 1 + 0 + 1 + 1 + 2 + 1 + 0 + 2 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5894725336152 + ... + 5894725336187.

It is an arithmetic number, because the mean of its divisors is an integer number (38315714685105).

Almost surely, 2^{212210112102102} is an apocalyptic number.

212210112102102 is an abundant number, since it is smaller than the sum of its proper divisors (247578464119158).

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

212210112102102 is a wasteful number, since it uses less digits than its factorization.

212210112102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789450672347 (or 11789450672344 counting only the distinct ones).

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

Adding to 212210112102102 its reverse (201201211012212), we get a palindrome (413411323114314).

The spelling of 212210112102102 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twelve million, one hundred two thousand, one hundred two".