20211022198 has 32 divisors (see below), whose sum is σ = 31651107840. Its totient is φ = 9668484000.

The previous prime is 20211022177. The next prime is 20211022207. The reversal of 20211022198 is 89122011202.

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, 3315133 + ... + 3321223.

It is an arithmetic number, because the mean of its divisors is an integer number (989097120).

Almost surely, 2^20211022198 is an apocalyptic number.

20211022198 is a deficient number, since it is larger than the sum of its proper divisors (11440085642).

20211022198 is a wasteful number, since it uses less digits than its factorization.

20211022198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 1152, while the sum is 28.

It can be divided in two parts, 202 and 11022198, that added together give a square (11022400 = 3320²).

The spelling of 20211022198 in words is "twenty billion, two hundred eleven million, twenty-two thousand, one hundred ninety-eight".