102122999 has 4 divisors (see below), whose sum is σ = 111406920. Its totient is φ = 92839080.

The previous prime is 102122981. The next prime is 102123001. The reversal of 102122999 is 999221201.

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 102122999 - 2⁸ = 102122743 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 (102122939) 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, 4641944 + ... + 4641965.

It is an arithmetic number, because the mean of its divisors is an integer number (27851730).

Almost surely, 2^102122999 is an apocalyptic number.

102122999 is a deficient number, since it is larger than the sum of its proper divisors (9283921).

102122999 is an equidigital number, since it uses as much as digits as its factorization.

102122999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283920.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 102122999 is about 10105.5924616026. The cubic root of 102122999 is about 467.4206051604.

The spelling of 102122999 in words is "one hundred two million, one hundred twenty-two thousand, nine hundred ninety-nine".