12215503769 has 16 divisors (see below), whose sum is σ = 15037102080. Its totient is φ = 9688669200.

The previous prime is 12215503753. The next prime is 12215503771. The reversal of 12215503769 is 96730551221.

12215503769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12215503769 - 2⁴ = 12215503753 is a prime.

It is a super-2 number, since 2×12215503769² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12215503789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062257 + ... + 1073694.

It is an arithmetic number, because the mean of its divisors is an integer number (939818880).

Almost surely, 2^12215503769 is an apocalyptic number.

12215503769 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12215503769 is a deficient number, since it is larger than the sum of its proper divisors (2821598311).

12215503769 is a wasteful number, since it uses less digits than its factorization.

12215503769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136020.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 12215503769 in words is "twelve billion, two hundred fifteen million, five hundred three thousand, seven hundred sixty-nine".