12215404038 has 16 divisors (see below), whose sum is σ = 25716640320. Its totient is φ = 3857495976.

The previous prime is 12215404031. The next prime is 12215404067. The reversal of 12215404038 is 83040451221.

It is a junction number, because it is equal to n+sod(n) for n = 12215403996 and 12215404014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215404031) 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, 53576220 + ... + 53576447.

It is an arithmetic number, because the mean of its divisors is an integer number (1607290020).

Almost surely, 2^12215404038 is an apocalyptic number.

12215404038 is an abundant number, since it is smaller than the sum of its proper divisors (13501236282).

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

12215404038 is a wasteful number, since it uses less digits than its factorization.

12215404038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107152691.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 12215404038 its reverse (83040451221), we get a palindrome (95255855259).

The spelling of 12215404038 in words is "twelve billion, two hundred fifteen million, four hundred four thousand, thirty-eight".