2023222661 has 4 divisors (see below), whose sum is σ = 2042131392. Its totient is φ = 2004313932.

The previous prime is 2023222639. The next prime is 2023222673. The reversal of 2023222661 is 1662223202.

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 a cyclic number.

It is not a de Polignac number, because 2023222661 - 2¹⁴ = 2023206277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2023222661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023222601) 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, 9454205 + ... + 9454418.

It is an arithmetic number, because the mean of its divisors is an integer number (510532848).

Almost surely, 2^2023222661 is an apocalyptic number.

It is an amenable number.

2023222661 is a deficient number, since it is larger than the sum of its proper divisors (18908731).

2023222661 is a wasteful number, since it uses less digits than its factorization.

2023222661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18908730.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2023222661 is about 44980.2474537435. The cubic root of 2023222661 is about 1264.7787499132.

Adding to 2023222661 its reverse (1662223202), we get a palindrome (3685445863).

The spelling of 2023222661 in words is "two billion, twenty-three million, two hundred twenty-two thousand, six hundred sixty-one".