2021002202009 has 4 divisors (see below), whose sum is σ = 2309716802304. Its totient is φ = 1732287601716.

The previous prime is 2021002201991. The next prime is 2021002202033. The reversal of 2021002202009 is 9002022001202.

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 not a de Polignac number, because 2021002202009 - 2¹² = 2021002197913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021002202039) 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, 144357300137 + ... + 144357300150.

It is an arithmetic number, because the mean of its divisors is an integer number (577429200576).

Almost surely, 2^{2021002202009} is an apocalyptic number.

It is an amenable number.

2021002202009 is a deficient number, since it is larger than the sum of its proper divisors (288714600295).

2021002202009 is an equidigital number, since it uses as much as digits as its factorization.

2021002202009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288714600294.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 2021002202009 in words is "two trillion, twenty-one billion, two million, two hundred two thousand, nine".