21112133322 has 32 divisors (see below), whose sum is σ = 49283039232. Its totient is φ = 5903696304.

The previous prime is 21112133311. The next prime is 21112133327. The reversal of 21112133322 is 22333121112.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (21112133327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5345578 + ... + 5349525.

It is an arithmetic number, because the mean of its divisors is an integer number (1540094976).

Almost surely, 2^21112133322 is an apocalyptic number.

21112133322 is an abundant number, since it is smaller than the sum of its proper divisors (28170905910).

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

21112133322 is a wasteful number, since it uses less digits than its factorization.

21112133322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695162.

The product of its digits is 432, while the sum is 21.

Adding to 21112133322 its reverse (22333121112), we get a palindrome (43445254434).

The spelling of 21112133322 in words is "twenty-one billion, one hundred twelve million, one hundred thirty-three thousand, three hundred twenty-two".