13222131020 has 24 divisors (see below), whose sum is σ = 31733114784. Its totient is φ = 4533302016.

The previous prime is 13222131001. The next prime is 13222131023. The reversal of 13222131020 is 2013122231.

It is a self number, because there is not a number n which added to its sum of digits gives 13222131020.

It is not an unprimeable number, because it can be changed into a prime (13222131023) 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, 47221757 + ... + 47222036.

It is an arithmetic number, because the mean of its divisors is an integer number (1322213116).

Almost surely, 2^13222131020 is an apocalyptic number.

13222131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222131020 is an abundant number, since it is smaller than the sum of its proper divisors (18510983764).

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

13222131020 is a wasteful number, since it uses less digits than its factorization.

13222131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94443809 (or 94443807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13222131020 its reverse (2013122231), we get a palindrome (15235253251).

The spelling of 13222131020 in words is "thirteen billion, two hundred twenty-two million, one hundred thirty-one thousand, twenty".