23001213222 has 64 divisors (see below), whose sum is σ = 55664280000. Its totient is φ = 6997757184.

The previous prime is 23001213217. The next prime is 23001213229. The reversal of 23001213222 is 22231210032.

23001213222 is a `hidden beast` number, since 230 + 0 + 1 + 213 + 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 = 23001213195 and 23001213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001213229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121597 + ... + 246552.

It is an arithmetic number, because the mean of its divisors is an integer number (869754375).

Almost surely, 2^23001213222 is an apocalyptic number.

23001213222 is an abundant number, since it is smaller than the sum of its proper divisors (32663066778).

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

23001213222 is a wasteful number, since it uses less digits than its factorization.

23001213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368262 (or 368256 counting only the distinct ones).

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

Adding to 23001213222 its reverse (22231210032), we get a palindrome (45232423254).

The spelling of 23001213222 in words is "twenty-three billion, one million, two hundred thirteen thousand, two hundred twenty-two".