9902012121002 has 16 divisors (see below), whose sum is σ = 14881282329600. Its totient is φ = 4941593449200.

The previous prime is 9902012120989. The next prime is 9902012121007. The reversal of 9902012121002 is 2001212102099.

It is not an unprimeable number, because it can be changed into a prime (9902012121007) 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, 67127 + ... + 4450677.

It is an arithmetic number, because the mean of its divisors is an integer number (930080145600).

Almost surely, 2^{9902012121002} is an apocalyptic number.

9902012121002 is a deficient number, since it is larger than the sum of its proper divisors (4979270208598).

9902012121002 is a wasteful number, since it uses less digits than its factorization.

9902012121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385701.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 9902012121002 in words is "nine trillion, nine hundred two billion, twelve million, one hundred twenty-one thousand, two".