102210021999 has 48 divisors (see below), whose sum is σ = 153969524800. Its totient is φ = 65281075200.

The previous prime is 102210021989. The next prime is 102210022001. The reversal of 102210021999 is 999120012201.

It is not a de Polignac number, because 102210021999 - 2²⁸ = 101941586543 is a prime.

It is a super-3 number, since 3×102210021999³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210021919) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6419949 + ... + 6435849.

Almost surely, 2^102210021999 is an apocalyptic number.

102210021999 is a deficient number, since it is larger than the sum of its proper divisors (51759502801).

102210021999 is a wasteful number, since it uses less digits than its factorization.

102210021999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240 (or 16237 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 102210021999 in words is "one hundred two billion, two hundred ten million, twenty-one thousand, nine hundred ninety-nine".