22292511228 has 120 divisors (see below), whose sum is σ = 62831273120. Its totient is φ = 6851433600.

The previous prime is 22292511223. The next prime is 22292511253. The reversal of 22292511228 is 82211529222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22292511192 and 22292511201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22292511223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4500153 + ... + 4505103.

Almost surely, 2^22292511228 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 22292511228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31415636560).

22292511228 is an abundant number, since it is smaller than the sum of its proper divisors (40538761892).

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

22292511228 is a wasteful number, since it uses less digits than its factorization.

22292511228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049 (or 6038 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The spelling of 22292511228 in words is "twenty-two billion, two hundred ninety-two million, five hundred eleven thousand, two hundred twenty-eight".