12215960311 has 8 divisors (see below), whose sum is σ = 12375904320. Its totient is φ = 12056149248.

The previous prime is 12215960243. The next prime is 12215960327. The reversal of 12215960311 is 11306951221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12215960311 - 2¹¹ = 12215958263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215960381) 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, 158955 + ... + 222931.

It is an arithmetic number, because the mean of its divisors is an integer number (1546988040).

Almost surely, 2^12215960311 is an apocalyptic number.

12215960311 is a deficient number, since it is larger than the sum of its proper divisors (159944009).

12215960311 is an equidigital number, since it uses as much as digits as its factorization.

12215960311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66473.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 12215960311 in words is "twelve billion, two hundred fifteen million, nine hundred sixty thousand, three hundred eleven".