22011321132 has 48 divisors (see below), whose sum is σ = 60423239520. Its totient is φ = 6905511936.

The previous prime is 22011321121. The next prime is 22011321139. The reversal of 22011321132 is 23112311022.

It is a super-2 number, since 2×22011321132² (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 not an unprimeable number, because it can be changed into a prime (22011321139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5992533 + ... + 5996204.

It is an arithmetic number, because the mean of its divisors is an integer number (1258817490).

Almost surely, 2^22011321132 is an apocalyptic number.

It is an amenable number.

22011321132 is an abundant number, since it is smaller than the sum of its proper divisors (38411918388).

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

22011321132 is a wasteful number, since it uses less digits than its factorization.

22011321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988767 (or 11988759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22011321132 its reverse (23112311022), we get a palindrome (45123632154).

The spelling of 22011321132 in words is "twenty-two billion, eleven million, three hundred twenty-one thousand, one hundred thirty-two".