22022000000 has 672 divisors, whose sum is σ = 74188112880. Its totient is φ = 6336000000.

The previous prime is 22021999963. The next prime is 22022000017. The reversal of 22022000000 is 22022.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 1693999994 + ... + 1694000006.

Almost surely, 2^22022000000 is an apocalyptic number.

22022000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37094056440).

22022000000 is an abundant number, since it is smaller than the sum of its proper divisors (52166112880).

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

22022000000 is an frugal number, since it uses more digits than its factorization.

22022000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 22022000000 its reverse (22022), we get a palindrome (22022022022).

Multiplying 22022000000 by its reverse (22022), we get a square (484968484000000 = 22022000²).

22022000000 divided by its reverse (22022) gives a 6-th power (1000000 = 10⁶).

The spelling of 22022000000 in words is "twenty-two billion, twenty-two million", and thus it is an aban number and an uban number.