12221364215 has 8 divisors (see below), whose sum is σ = 14671063008. Its totient is φ = 9773474080.

The previous prime is 12221364187. The next prime is 12221364223. The reversal of 12221364215 is 51246312221.

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

It is not a de Polignac number, because 12221364215 - 2¹⁶ = 12221298679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437252 + ... + 464361.

It is an arithmetic number, because the mean of its divisors is an integer number (1833882876).

Almost surely, 2^12221364215 is an apocalyptic number.

12221364215 is a deficient number, since it is larger than the sum of its proper divisors (2449698793).

12221364215 is an equidigital number, since it uses as much as digits as its factorization.

12221364215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904329.

The product of its digits is 5760, while the sum is 29.

Adding to 12221364215 its reverse (51246312221), we get a palindrome (63467676436).

The spelling of 12221364215 in words is "twelve billion, two hundred twenty-one million, three hundred sixty-four thousand, two hundred fifteen".