13220121122 has 16 divisors (see below), whose sum is σ = 21357718200. Its totient is φ = 6100983552.

The previous prime is 13220121071. The next prime is 13220121137. The reversal of 13220121122 is 22112102231.

It can be written as a sum of positive squares in 4 ways, for example, as 10880367481 + 2339753641 = 104309^2 + 48371^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13220121122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336248 + ... + 373500.

Almost surely, 2^13220121122 is an apocalyptic number.

13220121122 is a deficient number, since it is larger than the sum of its proper divisors (8137597078).

13220121122 is a wasteful number, since it uses less digits than its factorization.

13220121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50917.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13220121122 its reverse (22112102231), we get a palindrome (35332223353).

The spelling of 13220121122 in words is "thirteen billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".