12215099822 has 4 divisors (see below), whose sum is σ = 18322649736. Its totient is φ = 6107549910.

The previous prime is 12215099807. The next prime is 12215099833. The reversal of 12215099822 is 22899051221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12215099822² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12215099822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053774954 + ... + 3053774957.

It is an arithmetic number, because the mean of its divisors is an integer number (4580662434).

Almost surely, 2^12215099822 is an apocalyptic number.

12215099822 is a deficient number, since it is larger than the sum of its proper divisors (6107549914).

12215099822 is an equidigital number, since it uses as much as digits as its factorization.

12215099822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107549913.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 12215099822 in words is "twelve billion, two hundred fifteen million, ninety-nine thousand, eight hundred twenty-two".