22131501123 has 8 divisors (see below), whose sum is σ = 30306199888. Its totient is φ = 14355568224.

The previous prime is 22131501101. The next prime is 22131501127. The reversal of 22131501123 is 32110513122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22131501123 - 2¹³ = 22131492931 is a prime.

It is a super-2 number, since 2×22131501123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22131501123.

It is not an unprimeable number, because it can be changed into a prime (22131501127) 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, 99691336 + ... + 99691557.

It is an arithmetic number, because the mean of its divisors is an integer number (3788274986).

Almost surely, 2^22131501123 is an apocalyptic number.

22131501123 is a deficient number, since it is larger than the sum of its proper divisors (8174698765).

22131501123 is a wasteful number, since it uses less digits than its factorization.

22131501123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199382933.

The product of its (nonzero) digits is 360, while the sum is 21.

The spelling of 22131501123 in words is "twenty-two billion, one hundred thirty-one million, five hundred one thousand, one hundred twenty-three".