12220020012122 has 24 divisors (see below), whose sum is σ = 20444195229276. Its totient is φ = 5445526149504.

The previous prime is 12220020012103. The next prime is 12220020012131. The reversal of 12220020012122 is 22121002002221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3080590135921 + 9139429876201 = 1755161^2 + 3023149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12220020012122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279407843 + ... + 279451574.

Almost surely, 2^{12220020012122} is an apocalyptic number.

12220020012122 is a deficient number, since it is larger than the sum of its proper divisors (8224175217154).

12220020012122 is a wasteful number, since it uses less digits than its factorization.

12220020012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558859490 (or 558859461 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220020012122 its reverse (22121002002221), we get a palindrome (34341022014343).

The spelling of 12220020012122 in words is "twelve trillion, two hundred twenty billion, twenty million, twelve thousand, one hundred twenty-two".