990202210020011 has 4 divisors (see below), whose sum is σ = 990203581623024. Its totient is φ = 990200838417000.

The previous prime is 990202210019977. The next prime is 990202210020029. The reversal of 990202210020011 is 110020012202099.

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

It is a cyclic number.

It is not a de Polignac number, because 990202210020011 - 2³⁰ = 990201136278187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990202210025011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684718040 + ... + 686162661.

It is an arithmetic number, because the mean of its divisors is an integer number (247550895405756).

Almost surely, 2^{990202210020011} is an apocalyptic number.

990202210020011 is a deficient number, since it is larger than the sum of its proper divisors (1371603013).

990202210020011 is a wasteful number, since it uses less digits than its factorization.

990202210020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371603012.

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

The spelling of 990202210020011 in words is "nine hundred ninety trillion, two hundred two billion, two hundred ten million, twenty thousand, eleven".