22142305623204 has 96 divisors (see below), whose sum is σ = 61851942938240. Its totient is φ = 6809697661824.

The previous prime is 22142305623187. The next prime is 22142305623209. The reversal of 22142305623204 is 40232650324122.

22142305623204 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 3 + 0 + 5 + 623 + 20 + 4 = 666.

It is a super-2 number, since 2×22142305623204² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22142305623209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958522 + ... + 6723345.

Almost surely, 2^{22142305623204} 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 22142305623204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30925971469120).

22142305623204 is an abundant number, since it is smaller than the sum of its proper divisors (39709637315036).

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

22142305623204 is a wasteful number, since it uses less digits than its factorization.

22142305623204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7683946 (or 7683938 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 22142305623204 its reverse (40232650324122), we get a palindrome (62374955947326).

The spelling of 22142305623204 in words is "twenty-two trillion, one hundred forty-two billion, three hundred five million, six hundred twenty-three thousand, two hundred four".