13222201220 has 24 divisors (see below), whose sum is σ = 28662321408. Its totient is φ = 5118271200.

The previous prime is 13222201177. The next prime is 13222201243. The reversal of 13222201220 is 2210222231.

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, 10662446 + ... + 10663685.

It is an arithmetic number, because the mean of its divisors is an integer number (1194263392).

Almost surely, 2^13222201220 is an apocalyptic number.

13222201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222201220 is an abundant number, since it is smaller than the sum of its proper divisors (15440120188).

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

13222201220 is a wasteful number, since it uses less digits than its factorization.

13222201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21326171 (or 21326169 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 13222201220 its reverse (2210222231), we get a palindrome (15432423451).

The spelling of 13222201220 in words is "thirteen billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty".