102121010021002 has 16 divisors (see below), whose sum is σ = 175072858971840. Its totient is φ = 43764079560768.

The previous prime is 102121010020999. The next prime is 102121010021003. The reversal of 102121010021002 is 200120010121201.

It is not an unprimeable number, because it can be changed into a prime (102121010021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171992308 + ... + 172585039.

It is an arithmetic number, because the mean of its divisors is an integer number (10942053685740).

Almost surely, 2^{102121010021002} is an apocalyptic number.

102121010021002 is a deficient number, since it is larger than the sum of its proper divisors (72951848950838).

102121010021002 is a wasteful number, since it uses less digits than its factorization.

102121010021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344598525.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121010021002 its reverse (200120010121201), we get a palindrome (302241020142203).

The spelling of 102121010021002 in words is "one hundred two trillion, one hundred twenty-one billion, ten million, twenty-one thousand, two".