23112221132 has 144 divisors (see below), whose sum is σ = 55755072576. Its totient is φ = 8154432000.

The previous prime is 23112221087. The next prime is 23112221141.

23112221132 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×23112221132² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2329382 + ... + 2339282.

It is an arithmetic number, because the mean of its divisors is an integer number (387188004).

Almost surely, 2^23112221132 is an apocalyptic number.

23112221132 is a gapful number since it is divisible by the number (22) 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 23112221132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27877536288).

23112221132 is an abundant number, since it is smaller than the sum of its proper divisors (32642851444).

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

23112221132 is a wasteful number, since it uses less digits than its factorization.

23112221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000 (or 9987 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The spelling of 23112221132 in words is "twenty-three billion, one hundred twelve million, two hundred twenty-one thousand, one hundred thirty-two".