22232222201 has 4 divisors (see below), whose sum is σ = 25408253952. Its totient is φ = 19056190452.

The previous prime is 22232222149. The next prime is 22232222251. The reversal of 22232222201 is 10222223222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10222223222 = 2 ⋅5111111611.

It is a cyclic number.

It is not a de Polignac number, because 22232222201 - 2³⁴ = 5052353017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232222251) 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, 1588015865 + ... + 1588015878.

It is an arithmetic number, because the mean of its divisors is an integer number (6352063488).

Almost surely, 2^22232222201 is an apocalyptic number.

It is an amenable number.

22232222201 is a deficient number, since it is larger than the sum of its proper divisors (3176031751).

22232222201 is an equidigital number, since it uses as much as digits as its factorization.

22232222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176031750.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22232222201 its reverse (10222223222), we get a palindrome (32454445423).

The spelling of 22232222201 in words is "twenty-two billion, two hundred thirty-two million, two hundred twenty-two thousand, two hundred one".