20402200199 has 4 divisors (see below), whose sum is σ = 20899814880. Its totient is φ = 19904585520.

The previous prime is 20402200193. The next prime is 20402200207. The reversal of 20402200199 is 99100220402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20402200199 - 2²⁸ = 20133764743 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 (20402200193) 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, 248807279 + ... + 248807360.

It is an arithmetic number, because the mean of its divisors is an integer number (5224953720).

Almost surely, 2^20402200199 is an apocalyptic number.

20402200199 is a deficient number, since it is larger than the sum of its proper divisors (497614681).

20402200199 is an equidigital number, since it uses as much as digits as its factorization.

20402200199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497614680.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20402200199 in words is "twenty billion, four hundred two million, two hundred thousand, one hundred ninety-nine".