23222212000 has 192 divisors, whose sum is σ = 62461814688. Its totient is φ = 8432640000.

The previous prime is 23222211997. The next prime is 23222212031. The reversal of 23222212000 is 21222232.

It can be written as a sum of positive squares in 16 ways, for example, as 18342910096 + 4879301904 = 135436^2 + 69852^2 .

It is a super-2 number, since 2×23222212000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 3168340 + ... + 3175660.

Almost surely, 2^23222212000 is an apocalyptic number.

23222212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23222212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31230907344).

23222212000 is an abundant number, since it is smaller than the sum of its proper divisors (39239602688).

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

23222212000 is a wasteful number, since it uses less digits than its factorization.

23222212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420 (or 7402 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23222212000 its reverse (21222232), we get a palindrome (23243434232).

The spelling of 23222212000 in words is "twenty-three billion, two hundred twenty-two million, two hundred twelve thousand".