2102212210212 has 36 divisors (see below), whose sum is σ = 5354489636496. Its totient is φ = 695388261360.

The previous prime is 2102212210151. The next prime is 2102212210237. The reversal of 2102212210212 is 2120122122012.

It is a happy number.

2102212210212 is a `hidden beast` number, since 2 + 10 + 221 + 221 + 0 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222876138 + ... + 222885569.

It is an arithmetic number, because the mean of its divisors is an integer number (148735823236).

Almost surely, 2^{2102212210212} is an apocalyptic number.

It is an amenable number.

2102212210212 is an abundant number, since it is smaller than the sum of its proper divisors (3252277426284).

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

2102212210212 is a wasteful number, since it uses less digits than its factorization.

2102212210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445761848 (or 445761843 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2102212210212 its reverse (2120122122012), we get a palindrome (4222334332224).

The spelling of 2102212210212 in words is "two trillion, one hundred two billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".