23333221212 has 96 divisors (see below), whose sum is σ = 63563136000. Its totient is φ = 6659142336.

The previous prime is 23333221207. The next prime is 23333221213. The reversal of 23333221212 is 21212233332.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23333221213) 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, 4397353 + ... + 4402655.

It is an arithmetic number, because the mean of its divisors is an integer number (662116000).

Almost surely, 2^23333221212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23333221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31781568000).

23333221212 is an abundant number, since it is smaller than the sum of its proper divisors (40229914788).

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

23333221212 is a wasteful number, since it uses less digits than its factorization.

23333221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400 (or 6384 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 23333221212 its reverse (21212233332), we get a palindrome (44545454544).

The spelling of 23333221212 in words is "twenty-three billion, three hundred thirty-three million, two hundred twenty-one thousand, two hundred twelve".