23211221332 has 36 divisors (see below), whose sum is σ = 46167764916. Its totient is φ = 10149027840.

The previous prime is 23211221323. The next prime is 23211221333. The reversal of 23211221332 is 23312211232.

It can be written as a sum of positive squares in 2 ways, for example, as 5339809476 + 17871411856 = 73074^2 + 133684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211221333) 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 11 ways as a sum of consecutive naturals, for example, 599469 + ... + 637012.

Almost surely, 2^23211221332 is an apocalyptic number.

It is an amenable number.

23211221332 is a deficient number, since it is larger than the sum of its proper divisors (22956543584).

23211221332 is a wasteful number, since it uses less digits than its factorization.

23211221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236536 (or 1236515 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 23211221332 its reverse (23312211232), we get a palindrome (46523432564).

The spelling of 23211221332 in words is "twenty-three billion, two hundred eleven million, two hundred twenty-one thousand, three hundred thirty-two".