13220121022 has 16 divisors (see below), whose sum is σ = 19933196544. Its totient is φ = 6575751000.

The previous prime is 13220121011. The next prime is 13220121023. The reversal of 13220121022 is 22012102231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13220120987 and 13220121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220121023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146747 + ... + 1158217.

It is an arithmetic number, because the mean of its divisors is an integer number (1245824784).

Almost surely, 2^13220121022 is an apocalyptic number.

13220121022 is a deficient number, since it is larger than the sum of its proper divisors (6713075522).

13220121022 is a wasteful number, since it uses less digits than its factorization.

13220121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13220121022 its reverse (22012102231), we get a palindrome (35232223253).

The spelling of 13220121022 in words is "thirteen billion, two hundred twenty million, one hundred twenty-one thousand, twenty-two".