22311052144 has 40 divisors (see below), whose sum is σ = 46634091120. Its totient is φ = 10301211648.

The previous prime is 22311052117. The next prime is 22311052177. The reversal of 22311052144 is 44125011322.

It is a super-3 number, since 3×22311052144³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 759414 + ... + 788245.

It is an arithmetic number, because the mean of its divisors is an integer number (1165852278).

Almost surely, 2^22311052144 is an apocalyptic number.

It is an amenable number.

22311052144 is an abundant number, since it is smaller than the sum of its proper divisors (24323038976).

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

22311052144 is a wasteful number, since it uses less digits than its factorization.

22311052144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547737 (or 1547731 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22311052144 its reverse (44125011322), we get a palindrome (66436063466).

The spelling of 22311052144 in words is "twenty-two billion, three hundred eleven million, fifty-two thousand, one hundred forty-four".