22313121120 has 72 divisors (see below), whose sum is σ = 76143530736. Its totient is φ = 5950165248.

The previous prime is 22313121119. The next prime is 22313121157. The reversal of 22313121120 is 2112131322.

22313121120 is a `hidden beast` number, since 2 + 231 + 312 + 1 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-3 number, since 3×22313121120³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 22313121093 and 22313121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7746172 + ... + 7749051.

It is an arithmetic number, because the mean of its divisors is an integer number (1057549038).

Almost surely, 2^22313121120 is an apocalyptic number.

22313121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22313121120 is an abundant number, since it is smaller than the sum of its proper divisors (53830409616).

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

22313121120 is a wasteful number, since it uses less digits than its factorization.

22313121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495244 (or 15495233 counting only the distinct ones).

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

Adding to 22313121120 its reverse (2112131322), we get a palindrome (24425252442).

The spelling of 22313121120 in words is "twenty-two billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred twenty".