9900002022001 has 24 divisors (see below), whose sum is σ = 12619265457344. Its totient is φ = 7562866207680.

The previous prime is 9900002021999. The next prime is 9900002022037. The reversal of 9900002022001 is 1002202000099.

It is not a de Polignac number, because 9900002022001 - 2¹ = 9900002021999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9900002023001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64603155 + ... + 64756216.

Almost surely, 2^{9900002022001} is an apocalyptic number.

9900002022001 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

9900002022001 is a deficient number, since it is larger than the sum of its proper divisors (2719263435343).

9900002022001 is a wasteful number, since it uses less digits than its factorization.

9900002022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129359449 (or 129359420 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 9900002022001 in words is "nine trillion, nine hundred billion, two million, twenty-two thousand, one".