23221012332 has 48 divisors (see below), whose sum is σ = 62065805312. Its totient is φ = 6619242240.

The previous prime is 23221012253. The next prime is 23221012337. The reversal of 23221012332 is 23321012232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23221012299 and 23221012308.

It is not an unprimeable number, because it can be changed into a prime (23221012337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282844 + ... + 355587.

Almost surely, 2^23221012332 is an apocalyptic number.

It is an amenable number.

23221012332 is an abundant number, since it is smaller than the sum of its proper divisors (38844792980).

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

23221012332 is a wasteful number, since it uses less digits than its factorization.

23221012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638878 (or 638876 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23221012332 its reverse (23321012232), we get a palindrome (46542024564).

The spelling of 23221012332 in words is "twenty-three billion, two hundred twenty-one million, twelve thousand, three hundred thirty-two".