102120012099 has 96 divisors (see below), whose sum is σ = 178220656640. Its totient is φ = 55133395200.

The previous prime is 102120012097. The next prime is 102120012131. The reversal of 102120012099 is 990210021201.

It is not a de Polignac number, because 102120012099 - 2¹ = 102120012097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120012091) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11228544 + ... + 11237634.

Almost surely, 2^102120012099 is an apocalyptic number.

102120012099 is a deficient number, since it is larger than the sum of its proper divisors (76100644541).

102120012099 is a wasteful number, since it uses less digits than its factorization.

102120012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281 (or 9278 counting only the distinct ones).

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

The spelling of 102120012099 in words is "one hundred two billion, one hundred twenty million, twelve thousand, ninety-nine".