212112122202 has 16 divisors (see below), whose sum is σ = 471360271680. Its totient is φ = 70704040716.

The previous prime is 212112122147. The next prime is 212112122221. The reversal of 212112122202 is 202221211212.

It is a happy number.

212112122202 is a `hidden beast` number, since 21 + 211 + 212 + 220 + 2 = 666.

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 7 ways as a sum of consecutive naturals, for example, 1964001078 + ... + 1964001185.

It is an arithmetic number, because the mean of its divisors is an integer number (29460016980).

Almost surely, 2^212112122202 is an apocalyptic number.

212112122202 is an abundant number, since it is smaller than the sum of its proper divisors (259248149478).

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

212112122202 is a wasteful number, since it uses less digits than its factorization.

212112122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928002274 (or 3928002268 counting only the distinct ones).

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

Adding to 212112122202 its reverse (202221211212), we get a palindrome (414333333414).

The spelling of 212112122202 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty-two thousand, two hundred two".