23001222 has 16 divisors (see below), whose sum is σ = 46477872. Its totient is φ = 7587840.

The previous prime is 23001211. The next prime is 23001227. The reversal of 23001222 is 22210032.

It is a junction number, because it is equal to n+sod(n) for n = 23001198 and 23001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19179 + ... + 20342.

It is an arithmetic number, because the mean of its divisors is an integer number (2904867).

Almost surely, 2^23001222 is an apocalyptic number.

23001222 is an abundant number, since it is smaller than the sum of its proper divisors (23476650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23001222 is a wasteful number, since it uses less digits than its factorization.

23001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39623.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 23001222 is about 4795.9589239275. The cubic root of 23001222 is about 284.3917344256.

Adding to 23001222 its reverse (22210032), we get a palindrome (45211254).

The spelling of 23001222 in words is "twenty-three million, one thousand, two hundred twenty-two".