20622531200 has 48 divisors (see below), whose sum is σ = 50944104510. Its totient is φ = 8249011200.

The previous prime is 20622531197. The next prime is 20622531203. The reversal of 20622531200 is 213522602.

It is an interprime number because it is at equal distance from previous prime (20622531197) and next prime (20622531203).

It can be written as a sum of positive squares in 3 ways, for example, as 9624394816 + 10998136384 = 98104^2 + 104872^2 .

It is not an unprimeable number, because it can be changed into a prime (20622531203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3219071 + ... + 3225470.

Almost surely, 2^20622531200 is an apocalyptic number.

20622531200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20622531200 is an abundant number, since it is smaller than the sum of its proper divisors (30321573310).

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

20622531200 is an equidigital number, since it uses as much as digits as its factorization.

20622531200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444565 (or 6444548 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 20622531200 in words is "twenty billion, six hundred twenty-two million, five hundred thirty-one thousand, two hundred".