102002012121002 has 64 divisors (see below), whose sum is σ = 180977476884480. Its totient is φ = 42214469566464.

The previous prime is 102002012121001. The next prime is 102002012121017. The reversal of 102002012121002 is 200121210200201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (102002012121001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23979818 + ... + 27911210.

It is an arithmetic number, because the mean of its divisors is an integer number (2827773076320).

Almost surely, 2^{102002012121002} is an apocalyptic number.

102002012121002 is a deficient number, since it is larger than the sum of its proper divisors (78975464763478).

102002012121002 is a wasteful number, since it uses less digits than its factorization.

102002012121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932007.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102002012121002 its reverse (200121210200201), we get a palindrome (302123222321203).

The spelling of 102002012121002 in words is "one hundred two trillion, two billion, twelve million, one hundred twenty-one thousand, two".