212220012111202 has 4 divisors (see below), whose sum is σ = 318330018166806. Its totient is φ = 106110006055600.

The previous prime is 212220012111157. The next prime is 212220012111257. The reversal of 212220012111202 is 202111210022212.

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., 122255944277481 + 89964067833721 = 11056941^2 + 9484939^2 .

It is a super-2 number, since 2×212220012111202² (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 212220012111202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055003027799 + ... + 53055003027802.

Almost surely, 2^{212220012111202} is an apocalyptic number.

212220012111202 is a deficient number, since it is larger than the sum of its proper divisors (106110006055604).

212220012111202 is a wasteful number, since it uses less digits than its factorization.

212220012111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106110006055603.

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

Adding to 212220012111202 its reverse (202111210022212), we get a palindrome (414331222133414).

The spelling of 212220012111202 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, one hundred eleven thousand, two hundred two".