23211121122 has 72 divisors (see below), whose sum is σ = 61055020416. Its totient is φ = 6241636224.

The previous prime is 23211121121. The next prime is 23211121151. The reversal of 23211121122 is 22112111232.

It is a super-2 number, since 2×23211121122² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a junction number, because it is equal to n+sod(n) for n = 23211121095 and 23211121104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211121121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 282298 + ... + 355125.

Almost surely, 2^23211121122 is an apocalyptic number.

23211121122 is an abundant number, since it is smaller than the sum of its proper divisors (37843899294).

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

23211121122 is a wasteful number, since it uses less digits than its factorization.

23211121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637472 (or 637452 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 23211121122 its reverse (22112111232), we get a palindrome (45323232354).

The spelling of 23211121122 in words is "twenty-three billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".