20220199999 has 4 divisors (see below), whose sum is σ = 20399139936. Its totient is φ = 20041260064.

The previous prime is 20220199981. The next prime is 20220200003. The reversal of 20220199999 is 99999102202.

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 20220199999 - 2⁹ = 20220199487 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 (20220199939) 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, 89469799 + ... + 89470024.

It is an arithmetic number, because the mean of its divisors is an integer number (5099784984).

Almost surely, 2^20220199999 is an apocalyptic number.

20220199999 is a deficient number, since it is larger than the sum of its proper divisors (178939937).

20220199999 is a wasteful number, since it uses less digits than its factorization.

20220199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178939936.

The product of its (nonzero) digits is 472392, while the sum is 52.

The spelling of 20220199999 in words is "twenty billion, two hundred twenty million, one hundred ninety-nine thousand, nine hundred ninety-nine".