12040422152 has 32 divisors (see below), whose sum is σ = 24652209600. Its totient is φ = 5467569600.

The previous prime is 12040422077. The next prime is 12040422157. The reversal of 12040422152 is 25122404021.

It is a super-2 number, since 2×12040422152² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12040422157) 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, 24374 + ... + 157082.

It is an arithmetic number, because the mean of its divisors is an integer number (770381550).

Almost surely, 2^12040422152 is an apocalyptic number.

It is an amenable number.

12040422152 is an abundant number, since it is smaller than the sum of its proper divisors (12611787448).

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

12040422152 is a wasteful number, since it uses less digits than its factorization.

12040422152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133757 (or 133753 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12040422152 its reverse (25122404021), we get a palindrome (37162826173).

The spelling of 12040422152 in words is "twelve billion, forty million, four hundred twenty-two thousand, one hundred fifty-two".