1222257775215 has 48 divisors (see below), whose sum is σ = 2025796020768. Its totient is φ = 629260972032.

The previous prime is 1222257775163. The next prime is 1222257775217. The reversal of 1222257775215 is 5125777522221.

It is not a de Polignac number, because 1222257775215 - 2¹⁰ = 1222257774191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222257775217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97797847 + ... + 97810343.

It is an arithmetic number, because the mean of its divisors is an integer number (42204083766).

Almost surely, 2^{1222257775215} is an apocalyptic number.

1222257775215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222257775215 is a deficient number, since it is larger than the sum of its proper divisors (803538245553).

1222257775215 is a wasteful number, since it uses less digits than its factorization.

1222257775215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20316 (or 20287 counting only the distinct ones).

The product of its digits is 1372000, while the sum is 48.

The spelling of 1222257775215 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-seven million, seven hundred seventy-five thousand, two hundred fifteen".