22121313032 has 128 divisors (see below), whose sum is σ = 52223808000. Its totient is φ = 8729005824.

The previous prime is 22121313007. The next prime is 22121313041. The reversal of 22121313032 is 23031312122.

It is a junction number, because it is equal to n+sod(n) for n = 22121312995 and 22121313013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25933118 + ... + 25933970.

It is an arithmetic number, because the mean of its divisors is an integer number (407998500).

Almost surely, 2^22121313032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22121313032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26111904000).

22121313032 is an abundant number, since it is smaller than the sum of its proper divisors (30102494968).

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

22121313032 is a wasteful number, since it uses less digits than its factorization.

22121313032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22121313032 its reverse (23031312122), we get a palindrome (45152625154).

The spelling of 22121313032 in words is "twenty-two billion, one hundred twenty-one million, three hundred thirteen thousand, thirty-two".