22229020836 has 189 divisors, whose sum is σ = 64365177499. Its totient is φ = 6709230000.

The previous prime is 22229020823. The next prime is 22229020867. The reversal of 22229020836 is 63802092222.

The square root of 22229020836 is 149094.

It is a perfect power (a square), and thus also a powerful number.

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

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 22229020836.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 88561711 + ... + 88561961.

Almost surely, 2^22229020836 is an apocalyptic number.

22229020836 is the 149094-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22229020836

22229020836 is an abundant number, since it is smaller than the sum of its proper divisors (42136156663).

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

22229020836 is an equidigital number, since it uses as much as digits as its factorization.

22229020836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Multiplying 22229020836 by its sum of digits (36), we get a square (800244750096 = 894564²).

22229020836 divided by its sum of digits (36) gives a square (617472801 = 24849²).

The spelling of 22229020836 in words is "twenty-two billion, two hundred twenty-nine million, twenty thousand, eight hundred thirty-six".