22356120512 has 112 divisors (see below), whose sum is σ = 49864792320. Its totient is φ = 9856358400.

The previous prime is 22356120509. The next prime is 22356120529. The reversal of 22356120512 is 21502165322.

It is a super-2 number, since 2×22356120512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5164493 + ... + 5168819.

It is an arithmetic number, because the mean of its divisors is an integer number (445221360).

Almost surely, 2^22356120512 is an apocalyptic number.

22356120512 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 22356120512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24932396160).

22356120512 is an abundant number, since it is smaller than the sum of its proper divisors (27508671808).

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

22356120512 is a wasteful number, since it uses less digits than its factorization.

22356120512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570 (or 4560 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 22356120512 its reverse (21502165322), we get a palindrome (43858285834).

The spelling of 22356120512 in words is "twenty-two billion, three hundred fifty-six million, one hundred twenty thousand, five hundred twelve".