210202020993 has 16 divisors (see below), whose sum is σ = 280762345856. Its totient is φ = 139888304640.

The previous prime is 210202020961. The next prime is 210202021027. The reversal of 210202020993 is 399020202012.

It is a happy number.

It is not a de Polignac number, because 210202020993 - 2⁵ = 210202020961 is a prime.

It is a super-2 number, since 2×210202020993² (a number of 23 digits) contains 22 as substring.

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 210202020993.

It is not an unprimeable number, because it can be changed into a prime (210202020953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8724183 + ... + 8748243.

It is an arithmetic number, because the mean of its divisors is an integer number (17547646616).

Almost surely, 2^210202020993 is an apocalyptic number.

It is an amenable number.

210202020993 is a deficient number, since it is larger than the sum of its proper divisors (70560324863).

210202020993 is a wasteful number, since it uses less digits than its factorization.

210202020993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29064.

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 210202020993 in words is "two hundred ten billion, two hundred two million, twenty thousand, nine hundred ninety-three".