220122342012 has 12 divisors (see below), whose sum is σ = 513618798056. Its totient is φ = 73374114000.

The previous prime is 220122341993. The next prime is 220122342043. The reversal of 220122342012 is 210243221022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 220122342012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9171764239 + ... + 9171764262.

Almost surely, 2^220122342012 is an apocalyptic number.

It is an amenable number.

220122342012 is an abundant number, since it is smaller than the sum of its proper divisors (293496456044).

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

220122342012 is a wasteful number, since it uses less digits than its factorization.

220122342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343528508 (or 18343528506 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 220122342012 its reverse (210243221022), we get a palindrome (430365563034).

The spelling of 220122342012 in words is "two hundred twenty billion, one hundred twenty-two million, three hundred forty-two thousand, twelve".