102212199 has 20 divisors (see below), whose sum is σ = 153287640. Its totient is φ = 67873680.

The previous prime is 102212141. The next prime is 102212213. The reversal of 102212199 is 991212201.

It is not a de Polignac number, because 102212199 - 2⁸ = 102211943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19444 + ... + 24134.

It is an arithmetic number, because the mean of its divisors is an integer number (7664382).

Almost surely, 2^102212199 is an apocalyptic number.

102212199 is a deficient number, since it is larger than the sum of its proper divisors (51075441).

102212199 is an equidigital number, since it uses as much as digits as its factorization.

102212199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972 (or 4963 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 102212199 is about 10110.0048961412. The cubic root of 102212199 is about 467.5566560827.

The spelling of 102212199 in words is "one hundred two million, two hundred twelve thousand, one hundred ninety-nine".