1222404415 has 4 divisors (see below), whose sum is σ = 1466885304. Its totient is φ = 977923528.

The previous prime is 1222404401. The next prime is 1222404451. The reversal of 1222404415 is 5144042221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5144042221 = 61 ⋅84328561.

It is a cyclic number.

It is not a de Polignac number, because 1222404415 - 2²⁹ = 685533503 is a prime.

It is a super-2 number, since 2×1222404415² = 2988545107622984450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222404415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122240437 + ... + 122240446.

It is an arithmetic number, because the mean of its divisors is an integer number (366721326).

Almost surely, 2^1222404415 is an apocalyptic number.

1222404415 is a deficient number, since it is larger than the sum of its proper divisors (244480889).

1222404415 is an equidigital number, since it uses as much as digits as its factorization.

1222404415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244480888.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1222404415 is about 34962.9005518707. The cubic root of 1222404415 is about 1069.2312336853.

Adding to 1222404415 its reverse (5144042221), we get a palindrome (6366446636).

The spelling of 1222404415 in words is "one billion, two hundred twenty-two million, four hundred four thousand, four hundred fifteen".