1222463221 has 12 divisors (see below), whose sum is σ = 1429505280. Its totient is φ = 1042331640.

The previous prime is 1222463201. The next prime is 1222463227. The reversal of 1222463221 is 1223642221.

It is not a de Polignac number, because 1222463221 - 2⁵ = 1222463189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222463227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55951 + ... + 74668.

It is an arithmetic number, because the mean of its divisors is an integer number (119125440).

Almost surely, 2^1222463221 is an apocalyptic number.

It is an amenable number.

1222463221 is a deficient number, since it is larger than the sum of its proper divisors (207042059).

1222463221 is a wasteful number, since it uses less digits than its factorization.

1222463221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130824 (or 130817 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1222463221 is about 34963.7415188935. The cubic root of 1222463221 is about 1069.2483791851.

The spelling of 1222463221 in words is "one billion, two hundred twenty-two million, four hundred sixty-three thousand, two hundred twenty-one".