9999902201 has 4 divisors (see below), whose sum is σ = 10002514932. Its totient is φ = 9997289472.

The previous prime is 9999902183. The next prime is 9999902251. The reversal of 9999902201 is 1022099999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3576040000 + 6423862201 = 59800^2 + 80149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999902201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9999902201.

It is not an unprimeable number, because it can be changed into a prime (9999902251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300616 + ... + 1308281.

It is an arithmetic number, because the mean of its divisors is an integer number (2500628733).

Almost surely, 2^9999902201 is an apocalyptic number.

It is an amenable number.

9999902201 is a deficient number, since it is larger than the sum of its proper divisors (2612731).

9999902201 is a wasteful number, since it uses less digits than its factorization.

9999902201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612730.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 9999902201 is about 99999.5110038044. The cubic root of 9999902201 is about 2154.4276666237.

The spelling of 9999902201 in words is "nine billion, nine hundred ninety-nine million, nine hundred two thousand, two hundred one".