2002101001 has 4 divisors (see below), whose sum is σ = 2002471632. Its totient is φ = 2001730372.

The previous prime is 2002100983. The next prime is 2002101019. The reversal of 2002101001 is 1001012002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2002100983) and next prime (2002101019).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002101001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002101071) 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, 177091 + ... + 188056.

It is an arithmetic number, because the mean of its divisors is an integer number (500617908).

Almost surely, 2^2002101001 is an apocalyptic number.

It is an amenable number.

2002101001 is a deficient number, since it is larger than the sum of its proper divisors (370631).

2002101001 is an equidigital number, since it uses as much as digits as its factorization.

2002101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370630.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2002101001 is about 44744.8432894786. The cubic root of 2002101001 is about 1260.3620780618.

Adding to 2002101001 its reverse (1001012002), we get a palindrome (3003113003).

It can be divided in two parts, 200210 and 1001, that multiplied together give a triangular number (200410210 = T₂₀₀₂₀).

The spelling of 2002101001 in words is "two billion, two million, one hundred one thousand, one".