2002221000023 has 4 divisors (see below), whose sum is σ = 2044821446880. Its totient is φ = 1959620553168.

The previous prime is 2002221000019. The next prime is 2002221000037. The reversal of 2002221000023 is 3200001222002.

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 2002221000023 - 2² = 2002221000019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002220999971 and 2002221000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002221000323) 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, 21300223358 + ... + 21300223451.

It is an arithmetic number, because the mean of its divisors is an integer number (511205361720).

Almost surely, 2^{2002221000023} is an apocalyptic number.

2002221000023 is a deficient number, since it is larger than the sum of its proper divisors (42600446857).

2002221000023 is an equidigital number, since it uses as much as digits as its factorization.

2002221000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42600446856.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 2002221000023 its reverse (3200001222002), we get a palindrome (5202222222025).

The spelling of 2002221000023 in words is "two trillion, two billion, two hundred twenty-one million, twenty-three", and thus it is an aban number.