212122212111202 has 4 divisors (see below), whose sum is σ = 318183318166806. Its totient is φ = 106061106055600.

The previous prime is 212122212111163. The next prime is 212122212111233. The reversal of 212122212111202 is 202111212221212.

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., 129161429336241 + 82960782774961 = 11364921^2 + 9108281^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53030553027799 + ... + 53030553027802.

Almost surely, 2^{212122212111202} is an apocalyptic number.

212122212111202 is a deficient number, since it is larger than the sum of its proper divisors (106061106055604).

212122212111202 is a wasteful number, since it uses less digits than its factorization.

212122212111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106061106055603.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212122212111202 its reverse (202111212221212), we get a palindrome (414233424332414).

The spelling of 212122212111202 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twelve million, one hundred eleven thousand, two hundred two".