22040140412 has 24 divisors (see below), whose sum is σ = 38963471232. Its totient is φ = 10907784000.

The previous prime is 22040140411. The next prime is 22040140459. The reversal of 22040140412 is 21404104022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040140411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2023862 + ... + 2034722.

It is an arithmetic number, because the mean of its divisors is an integer number (1623477968).

Almost surely, 2^22040140412 is an apocalyptic number.

It is an amenable number.

22040140412 is a deficient number, since it is larger than the sum of its proper divisors (16923330820).

22040140412 is a wasteful number, since it uses less digits than its factorization.

22040140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989 (or 15987 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22040140412 its reverse (21404104022), we get a palindrome (43444244434).

The spelling of 22040140412 in words is "twenty-two billion, forty million, one hundred forty thousand, four hundred twelve".