1222518227 has 16 divisors (see below), whose sum is σ = 1414612992. Its totient is φ = 1034843040.

The previous prime is 1222518211. The next prime is 1222518239. The reversal of 1222518227 is 7228152221.

It is not a de Polignac number, because 1222518227 - 2⁴ = 1222518211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222518193 and 1222518202.

It is not an unprimeable number, because it can be changed into a prime (1222518727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284102 + ... + 288372.

It is an arithmetic number, because the mean of its divisors is an integer number (88413312).

Almost surely, 2^1222518227 is an apocalyptic number.

1222518227 is a deficient number, since it is larger than the sum of its proper divisors (192094765).

1222518227 is a wasteful number, since it uses less digits than its factorization.

1222518227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778.

The product of its digits is 8960, while the sum is 32.

The square root of 1222518227 is about 34964.5281249440. The cubic root of 1222518227 is about 1069.2644162577.

The spelling of 1222518227 in words is "one billion, two hundred twenty-two million, five hundred eighteen thousand, two hundred twenty-seven".