220122122212 has 6 divisors (see below), whose sum is σ = 385213713878. Its totient is φ = 110061061104.

The previous prime is 220122122191. The next prime is 220122122243. The reversal of 220122122212 is 212221221022.

It can be written as a sum of positive squares in only one way, i.e., 112048189696 + 108073932516 = 334736^2 + 328746^2 .

It is a super-2 number, since 2×220122122212² (a number of 23 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 220122122212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515265273 + ... + 27515265280.

Almost surely, 2^220122122212 is an apocalyptic number.

It is an amenable number.

220122122212 is a deficient number, since it is larger than the sum of its proper divisors (165091591666).

220122122212 is a wasteful number, since it uses less digits than its factorization.

220122122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55030530557 (or 55030530555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220122122212 its reverse (212221221022), we get a palindrome (432343343234).

The spelling of 220122122212 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".