21022102199 has 16 divisors (see below), whose sum is σ = 26259111936. Its totient is φ = 16411939200.

The previous prime is 21022102187. The next prime is 21022102201. The reversal of 21022102199 is 99120122012.

It is a cyclic number.

It is not a de Polignac number, because 21022102199 - 2⁴ = 21022102183 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 (21022102139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845607 + ... + 2852984.

It is an arithmetic number, because the mean of its divisors is an integer number (1641194496).

Almost surely, 2^21022102199 is an apocalyptic number.

21022102199 is a deficient number, since it is larger than the sum of its proper divisors (5237009737).

21022102199 is a wasteful number, since it uses less digits than its factorization.

21022102199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698646.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 21022102199 in words is "twenty-one billion, twenty-two million, one hundred two thousand, one hundred ninety-nine".