12215354029 has 8 divisors (see below), whose sum is σ = 12978663480. Its totient is φ = 11496799168.

The previous prime is 12215353991. The next prime is 12215354033. The reversal of 12215354029 is 92045351221.

It can be written as a sum of positive squares in 4 ways, for example, as 77264100 + 12138089929 = 8790^2 + 110173^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12215354029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12215353985 and 12215354003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215354069) 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, 1238254 + ... + 1248079.

It is an arithmetic number, because the mean of its divisors is an integer number (1622332935).

Almost surely, 2^12215354029 is an apocalyptic number.

It is an amenable number.

12215354029 is a deficient number, since it is larger than the sum of its proper divisors (763309451).

12215354029 is an frugal number, since it uses more digits than its factorization.

12215354029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486384 (or 2486350 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 12215354029 in words is "twelve billion, two hundred fifteen million, three hundred fifty-four thousand, twenty-nine".