23321001222 has 64 divisors (see below), whose sum is σ = 53726699520. Its totient is φ = 7490491200.

The previous prime is 23321001211. The next prime is 23321001241. The reversal of 23321001222 is 22210012332.

23321001222 is a `hidden beast` number, since 233 + 210 + 0 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23321001195 and 23321001204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360147 + ... + 419937.

It is an arithmetic number, because the mean of its divisors is an integer number (839479680).

Almost surely, 2^23321001222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23321001222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26863349760).

23321001222 is an abundant number, since it is smaller than the sum of its proper divisors (30405698298).

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

23321001222 is a wasteful number, since it uses less digits than its factorization.

23321001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60066 (or 60060 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23321001222 its reverse (22210012332), we get a palindrome (45531013554).

The spelling of 23321001222 in words is "twenty-three billion, three hundred twenty-one million, one thousand, two hundred twenty-two".