1222115455 has 8 divisors (see below), whose sum is σ = 1599860304. Its totient is φ = 888811200.

The previous prime is 1222115437. The next prime is 1222115471. The reversal of 1222115455 is 5545112221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222115455 - 2¹¹ = 1222113407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11110086 + ... + 11110195.

It is an arithmetic number, because the mean of its divisors is an integer number (199982538).

Almost surely, 2^1222115455 is an apocalyptic number.

1222115455 is a deficient number, since it is larger than the sum of its proper divisors (377744849).

1222115455 is a wasteful number, since it uses less digits than its factorization.

1222115455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220297.

The product of its digits is 4000, while the sum is 28.

The square root of 1222115455 is about 34958.7679273741. The cubic root of 1222115455 is about 1069.1469764074.

Adding to 1222115455 its reverse (5545112221), we get a palindrome (6767227676).

The spelling of 1222115455 in words is "one billion, two hundred twenty-two million, one hundred fifteen thousand, four hundred fifty-five".