22228905372 has 96 divisors (see below), whose sum is σ = 56075846400. Its totient is φ = 6831936000.

The previous prime is 22228905359. The next prime is 22228905383. The reversal of 22228905372 is 27350982222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1350472 + ... + 1366832.

It is an arithmetic number, because the mean of its divisors is an integer number (584123400).

Almost surely, 2^22228905372 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 22228905372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28037923200).

22228905372 is an abundant number, since it is smaller than the sum of its proper divisors (33846941028).

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

22228905372 is a wasteful number, since it uses less digits than its factorization.

22228905372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16547 (or 16545 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 22228905372 in words is "twenty-two billion, two hundred twenty-eight million, nine hundred five thousand, three hundred seventy-two".