22440031412 has 12 divisors (see below), whose sum is σ = 39271122660. Its totient is φ = 11219710656.

The previous prime is 22440031409. The next prime is 22440031417. The reversal of 22440031412 is 21413004422.

It can be written as a sum of positive squares in 2 ways, for example, as 22038590116 + 401441296 = 148454^2 + 20036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440031417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202328 + ... + 292944.

It is an arithmetic number, because the mean of its divisors is an integer number (3272593555).

Almost surely, 2^22440031412 is an apocalyptic number.

It is an amenable number.

22440031412 is a deficient number, since it is larger than the sum of its proper divisors (16831091248).

22440031412 is a wasteful number, since it uses less digits than its factorization.

22440031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152530 (or 152528 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22440031412 its reverse (21413004422), we get a palindrome (43853035834).

The spelling of 22440031412 in words is "twenty-two billion, four hundred forty million, thirty-one thousand, four hundred twelve".