1222516422 has 32 divisors (see below), whose sum is σ = 2718747360. Its totient is φ = 407198880.

The previous prime is 1222516417. The next prime is 1222516457. The reversal of 1222516422 is 2246152221.

1222516422 is a `hidden beast` number, since 1 + 2 + 225 + 16 + 422 = 666.

1222516422 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70672 + ... + 86252.

It is an arithmetic number, because the mean of its divisors is an integer number (84960855).

Almost surely, 2^1222516422 is an apocalyptic number.

1222516422 is an abundant number, since it is smaller than the sum of its proper divisors (1496230938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222516422 is a wasteful number, since it uses less digits than its factorization.

1222516422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17045 (or 17039 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1222516422 is about 34964.5023130603. The cubic root of 1222516422 is about 1069.2638900151.

Adding to 1222516422 its reverse (2246152221), we get a palindrome (3468668643).

The spelling of 1222516422 in words is "one billion, two hundred twenty-two million, five hundred sixteen thousand, four hundred twenty-two".