13221811290 has 32 divisors (see below), whose sum is σ = 31742533440. Its totient is φ = 3524684544.

The previous prime is 13221811259. The next prime is 13221811297. The reversal of 13221811290 is 9211812231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13221811297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26466 + ... + 164754.

It is an arithmetic number, because the mean of its divisors is an integer number (991954170).

Almost surely, 2^13221811290 is an apocalyptic number.

13221811290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221811290 is an abundant number, since it is smaller than the sum of its proper divisors (18520722150).

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

13221811290 is a wasteful number, since it uses less digits than its factorization.

13221811290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141486.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 13221811290 in words is "thirteen billion, two hundred twenty-one million, eight hundred eleven thousand, two hundred ninety".