102120010002 has 24 divisors (see below), whose sum is σ = 221415129936. Its totient is φ = 34016140536.

The previous prime is 102120009961. The next prime is 102120010033. The reversal of 102120010002 is 200010021201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1962168 + ... + 2013539.

It is an arithmetic number, because the mean of its divisors is an integer number (9225630414).

Almost surely, 2^102120010002 is an apocalyptic number.

102120010002 is an abundant number, since it is smaller than the sum of its proper divisors (119295119934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120010002 is a wasteful number, since it uses less digits than its factorization.

102120010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977142 (or 3977139 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102120010002 its reverse (200010021201), we get a palindrome (302130031203).

The spelling of 102120010002 in words is "one hundred two billion, one hundred twenty million, ten thousand, two".