22311120321 has 12 divisors (see below), whose sum is σ = 36831055872. Its totient is φ = 12749211576.

The previous prime is 22311120319. The next prime is 22311120343. The reversal of 22311120321 is 12302111322.

22311120321 is a `hidden beast` number, since 2 + 231 + 112 + 0 + 321 = 666.

It is not a de Polignac number, because 22311120321 - 2¹ = 22311120319 is a prime.

It is a super-3 number, since 3×22311120321³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22311120294 and 22311120303.

It is not an unprimeable number, because it can be changed into a prime (22311140321) 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 11 ways as a sum of consecutive naturals, for example, 177072321 + ... + 177072446.

It is an arithmetic number, because the mean of its divisors is an integer number (3069254656).

Almost surely, 2^22311120321 is an apocalyptic number.

22311120321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22311120321 is a deficient number, since it is larger than the sum of its proper divisors (14519935551).

22311120321 is a wasteful number, since it uses less digits than its factorization.

22311120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354144780 (or 354144777 counting only the distinct ones).

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

Adding to 22311120321 its reverse (12302111322), we get a palindrome (34613231643).

The spelling of 22311120321 in words is "twenty-two billion, three hundred eleven million, one hundred twenty thousand, three hundred twenty-one".