22322015145 has 12 divisors (see below), whose sum is σ = 38691492996. Its totient is φ = 11905074720.

The previous prime is 22322015137. The next prime is 22322015147. The reversal of 22322015145 is 54151022322.

It can be written as a sum of positive squares in 2 ways, for example, as 5816960361 + 16505054784 = 76269^2 + 128472^2 .

It is not a de Polignac number, because 22322015145 - 2³ = 22322015137 is a prime.

It is a super-3 number, since 3×22322015145³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22322015147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248022346 + ... + 248022435.

It is an arithmetic number, because the mean of its divisors is an integer number (3224291083).

Almost surely, 2^22322015145 is an apocalyptic number.

It is an amenable number.

22322015145 is a deficient number, since it is larger than the sum of its proper divisors (16369477851).

22322015145 is a wasteful number, since it uses less digits than its factorization.

22322015145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496044792 (or 496044789 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 22322015145 its reverse (54151022322), we get a palindrome (76473037467).

The spelling of 22322015145 in words is "twenty-two billion, three hundred twenty-two million, fifteen thousand, one hundred forty-five".