22020312000 has 112 divisors (see below), whose sum is σ = 72711149472. Its totient is φ = 5872076800.

The previous prime is 22020311909. The next prime is 22020312047. The reversal of 22020312000 is 21302022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434757 + ... + 482756.

Almost surely, 2^22020312000 is an apocalyptic number.

22020312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020312000 is an abundant number, since it is smaller than the sum of its proper divisors (50690837472).

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

22020312000 is an equidigital number, since it uses as much as digits as its factorization.

22020312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917543 (or 917523 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22020312000 its reverse (21302022), we get a palindrome (22041614022).

The spelling of 22020312000 in words is "twenty-two billion, twenty million, three hundred twelve thousand".