2221002023 has 4 divisors (see below), whose sum is σ = 2221612680. Its totient is φ = 2220391368.

The previous prime is 2221002013. The next prime is 2221002029. The reversal of 2221002023 is 3202001222.

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 2221002023 - 2¹⁸ = 2220739879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221001989 and 2221002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002029) 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, 299840 + ... + 307157.

It is an arithmetic number, because the mean of its divisors is an integer number (555403170).

Almost surely, 2^2221002023 is an apocalyptic number.

2221002023 is a deficient number, since it is larger than the sum of its proper divisors (610657).

2221002023 is an equidigital number, since it uses as much as digits as its factorization.

2221002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610656.

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

The square root of 2221002023 is about 47127.5081348463. The cubic root of 2221002023 is about 1304.7169907378.

Adding to 2221002023 its reverse (3202001222), we get a palindrome (5423003245).

The spelling of 2221002023 in words is "two billion, two hundred twenty-one million, two thousand, twenty-three".