22013331312 has 160 divisors (see below), whose sum is σ = 65760076800. Its totient is φ = 6215491584.

The previous prime is 22013331311. The next prime is 22013331313. The reversal of 22013331312 is 21313331022.

It is an interprime number because it is at equal distance from previous prime (22013331311) and next prime (22013331313).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013331311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23695264 + ... + 23696192.

It is an arithmetic number, because the mean of its divisors is an integer number (411000480).

Almost surely, 2^22013331312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22013331312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32880038400).

22013331312 is an abundant number, since it is smaller than the sum of its proper divisors (43746745488).

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

22013331312 is a wasteful number, since it uses less digits than its factorization.

22013331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22013331312 its reverse (21313331022), we get a palindrome (43326662334).

The spelling of 22013331312 in words is "twenty-two billion, thirteen million, three hundred thirty-one thousand, three hundred twelve".