12215425430 has 32 divisors (see below), whose sum is σ = 23888710944. Its totient is φ = 4470391296.

The previous prime is 12215425427. The next prime is 12215425433. The reversal of 12215425430 is 3452451221.

It is an interprime number because it is at equal distance from previous prime (12215425427) and next prime (12215425433).

It is a junction number, because it is equal to n+sod(n) for n = 12215425393 and 12215425402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215425433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401084 + ... + 430463.

It is an arithmetic number, because the mean of its divisors is an integer number (746522217).

Almost surely, 2^12215425430 is an apocalyptic number.

12215425430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12215425430 is a deficient number, since it is larger than the sum of its proper divisors (11673285514).

12215425430 is a wasteful number, since it uses less digits than its factorization.

12215425430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831680.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 12215425430 its reverse (3452451221), we get a palindrome (15667876651).

The spelling of 12215425430 in words is "twelve billion, two hundred fifteen million, four hundred twenty-five thousand, four hundred thirty".