212122202202 has 24 divisors (see below), whose sum is σ = 459668008800. Its totient is φ = 70696646280.

The previous prime is 212122202197. The next prime is 212122202261. The reversal of 212122202202 is 202202221212.

212122202202 is a `hidden beast` number, since 212 + 12 + 220 + 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 11 ways as a sum of consecutive naturals, for example, 774124 + ... + 1011687.

It is an arithmetic number, because the mean of its divisors is an integer number (19152833700).

Almost surely, 2^212122202202 is an apocalyptic number.

212122202202 is an abundant number, since it is smaller than the sum of its proper divisors (247545806598).

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

212122202202 is a wasteful number, since it uses less digits than its factorization.

212122202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792418 (or 1792415 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 212122202202 its reverse (202202221212), we get a palindrome (414324423414).

The spelling of 212122202202 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, two hundred two".