102012099 has 8 divisors (see below), whose sum is σ = 155447040. Its totient is φ = 58292616.

The previous prime is 102012091. The next prime is 102012133. The reversal of 102012099 is 990210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102012099 - 2³ = 102012091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102012091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2428839 + ... + 2428880.

It is an arithmetic number, because the mean of its divisors is an integer number (19430880).

Almost surely, 2^102012099 is an apocalyptic number.

102012099 is a deficient number, since it is larger than the sum of its proper divisors (53434941).

102012099 is an equidigital number, since it uses as much as digits as its factorization.

102012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857729.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 102012099 is about 10100.1039103566. The cubic root of 102012099 is about 467.2513461265.

The spelling of 102012099 in words is "one hundred two million, twelve thousand, ninety-nine".