212112010122202 has 4 divisors (see below), whose sum is σ = 318168015183306. Its totient is φ = 106056005061100.

The previous prime is 212112010122169. The next prime is 212112010122251. The reversal of 212112010122202 is 202221010211212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208879641223561 + 3232368898641 = 14452669^2 + 1797879^2 .

It is a super-2 number, since 2×212112010122202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212112010122202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53028002530549 + ... + 53028002530552.

Almost surely, 2^{212112010122202} is an apocalyptic number.

212112010122202 is a deficient number, since it is larger than the sum of its proper divisors (106056005061104).

212112010122202 is a wasteful number, since it uses less digits than its factorization.

212112010122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106056005061103.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212112010122202 its reverse (202221010211212), we get a palindrome (414333020333414).

The spelling of 212112010122202 in words is "two hundred twelve trillion, one hundred twelve billion, ten million, one hundred twenty-two thousand, two hundred two".