202002101001 has 24 divisors (see below), whose sum is σ = 295152590304. Its totient is φ = 133119866880.

The previous prime is 202002100969. The next prime is 202002101009. The reversal of 202002101001 is 100101200202.

It is not a de Polignac number, because 202002101001 - 2⁵ = 202002100969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (202002101009) 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, 30331 + ... + 636336.

It is an arithmetic number, because the mean of its divisors is an integer number (12298024596).

Almost surely, 2^202002101001 is an apocalyptic number.

It is an amenable number.

202002101001 is a deficient number, since it is larger than the sum of its proper divisors (93150489303).

202002101001 is a wasteful number, since it uses less digits than its factorization.

202002101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667061 (or 667058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 202002101001 its reverse (100101200202), we get a palindrome (302103301203).

The spelling of 202002101001 in words is "two hundred two billion, two million, one hundred one thousand, one".