212122202 has 4 divisors (see below), whose sum is σ = 318183306. Its totient is φ = 106061100.

The previous prime is 212122199. The next prime is 212122237. The reversal of 212122202 is 202221212.

212122202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 169494361 + 42627841 = 13019^2 + 6529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53030549 + ... + 53030552.

Almost surely, 2^212122202 is an apocalyptic number.

212122202 is a deficient number, since it is larger than the sum of its proper divisors (106061104).

212122202 is a wasteful number, since it uses less digits than its factorization.

212122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106061103.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212122202 is about 14564.4156079123. The cubic root of 212122202 is about 596.3877425999.

Adding to 212122202 its reverse (202221212), we get a palindrome (414343414).

The spelling of 212122202 in words is "two hundred twelve million, one hundred twenty-two thousand, two hundred two".