102121221200012 has 24 divisors (see below), whose sum is σ = 204258255033504. Its totient is φ = 43762849235712.

The previous prime is 102121221199993. The next prime is 102121221200023. The reversal of 102121221200012 is 210002122121201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140816093 + ... + 141539444.

It is an arithmetic number, because the mean of its divisors is an integer number (8510760626396).

Almost surely, 2^{102121221200012} is an apocalyptic number.

It is an amenable number.

102121221200012 is an abundant number, since it is smaller than the sum of its proper divisors (102137033833492).

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

102121221200012 is a wasteful number, since it uses less digits than its factorization.

102121221200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282368465 (or 282368463 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102121221200012 its reverse (210002122121201), we get a palindrome (312123343321213).

The spelling of 102121221200012 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred thousand, twelve".