102121021221002 has 24 divisors (see below), whose sum is σ = 179856095756544. Its totient is φ = 43357122489912.

The previous prime is 102121021220989. The next prime is 102121021221049. The reversal of 102121021221002 is 200122120121201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4869387818 + ... + 4869408789.

It is an arithmetic number, because the mean of its divisors is an integer number (7494003989856).

Almost surely, 2^{102121021221002} is an apocalyptic number.

102121021221002 is a deficient number, since it is larger than the sum of its proper divisors (77735074535542).

102121021221002 is a wasteful number, since it uses less digits than its factorization.

102121021221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9738796730 (or 9738796723 counting only the distinct ones).

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

Adding to 102121021221002 its reverse (200122120121201), we get a palindrome (302243141342203).

The spelling of 102121021221002 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty-one thousand, two".