102012100002 has 40 divisors (see below), whose sum is σ = 229531232172. Its totient is φ = 33862924800.

The previous prime is 102012099953. The next prime is 102012100027. The reversal of 102012100002 is 200001210201.

It can be written as a sum of positive squares in 2 ways, for example, as 98201383641 + 3810716361 = 313371^2 + 61731^2 .

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 (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1267399 + ... + 1345482.

Almost surely, 2^102012100002 is an apocalyptic number.

102012100002 is an abundant number, since it is smaller than the sum of its proper divisors (127519132170).

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

102012100002 is a wasteful number, since it uses less digits than its factorization.

102012100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613136 (or 2613127 counting only the distinct ones).

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

Adding to 102012100002 its reverse (200001210201), we get a palindrome (302013310203).

The spelling of 102012100002 in words is "one hundred two billion, twelve million, one hundred thousand, two".