22100331132 has 144 divisors (see below), whose sum is σ = 61617978240. Its totient is φ = 6623337600.

The previous prime is 22100331101. The next prime is 22100331151. The reversal of 22100331132 is 23113300122.

It is a super-2 number, since 2×22100331132² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

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, 18218958 + ... + 18220170.

Almost surely, 2^22100331132 is an apocalyptic number.

22100331132 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 22100331132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30808989120).

22100331132 is an abundant number, since it is smaller than the sum of its proper divisors (39517647108).

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

22100331132 is a wasteful number, since it uses less digits than its factorization.

22100331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22100331132 its reverse (23113300122), we get a palindrome (45213631254).

The spelling of 22100331132 in words is "twenty-two billion, one hundred million, three hundred thirty-one thousand, one hundred thirty-two".