20622531199 has 4 divisors (see below), whose sum is σ = 20623106736. Its totient is φ = 20621955664.

The previous prime is 20622531197. The next prime is 20622531203. The reversal of 20622531199 is 99113522602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99113522602 = 2 ⋅49556761301.

It is a cyclic number.

It is not a de Polignac number, because 20622531199 - 2¹ = 20622531197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622531197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230179 + ... + 306964.

It is an arithmetic number, because the mean of its divisors is an integer number (5155776684).

Almost surely, 2^20622531199 is an apocalyptic number.

20622531199 is a deficient number, since it is larger than the sum of its proper divisors (575537).

20622531199 is an equidigital number, since it uses as much as digits as its factorization.

20622531199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575536.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 20622531199 in words is "twenty billion, six hundred twenty-two million, five hundred thirty-one thousand, one hundred ninety-nine".