102120020002 has 32 divisors (see below), whose sum is σ = 205668296064. Its totient is φ = 36726480000.

The previous prime is 102120019997. The next prime is 102120020027. The reversal of 102120020002 is 200020021201.

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 15 ways as a sum of consecutive naturals, for example, 25502499 + ... + 25506502.

It is an arithmetic number, because the mean of its divisors is an integer number (6427134252).

Almost surely, 2^102120020002 is an apocalyptic number.

102120020002 is an abundant number, since it is smaller than the sum of its proper divisors (103548276062).

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

102120020002 is a wasteful number, since it uses less digits than its factorization.

102120020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51009034.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102120020002 its reverse (200020021201), we get a palindrome (302140041203).

The spelling of 102120020002 in words is "one hundred two billion, one hundred twenty million, twenty thousand, two".