9921000200101 has 16 divisors (see below), whose sum is σ = 10438583500800. Its totient is φ = 9410757169968.

The previous prime is 9921000200093. The next prime is 9921000200159. The reversal of 9921000200101 is 1010020001299.

9921000200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9921000200101 - 2³ = 9921000200093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9921000200171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086460 + ... + 4585018.

It is an arithmetic number, because the mean of its divisors is an integer number (652411468800).

Almost surely, 2^{9921000200101} is an apocalyptic number.

It is an amenable number.

9921000200101 is a deficient number, since it is larger than the sum of its proper divisors (517583300699).

9921000200101 is a wasteful number, since it uses less digits than its factorization.

9921000200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499608.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 9921000200101 in words is "nine trillion, nine hundred twenty-one billion, two hundred thousand, one hundred one".