1222247418 has 64 divisors (see below), whose sum is σ = 2890660608. Its totient is φ = 337236480.

The previous prime is 1222247399. The next prime is 1222247431. The reversal of 1222247418 is 8147422221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210028 + ... + 215768.

It is an arithmetic number, because the mean of its divisors is an integer number (45166572).

Almost surely, 2^1222247418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222247418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445330304).

1222247418 is an abundant number, since it is smaller than the sum of its proper divisors (1668413190).

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

1222247418 is a wasteful number, since it uses less digits than its factorization.

1222247418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927.

The product of its digits is 14336, while the sum is 33.

The square root of 1222247418 is about 34960.6552856207. The cubic root of 1222247418 is about 1069.1854568865.

Adding to 1222247418 its reverse (8147422221), we get a palindrome (9369669639).

The spelling of 1222247418 in words is "one billion, two hundred twenty-two million, two hundred forty-seven thousand, four hundred eighteen".