1122225155 has 8 divisors (see below), whose sum is σ = 1362895632. Its totient is φ = 886963168.

The previous prime is 1122225073. The next prime is 1122225197. The reversal of 1122225155 is 5515222211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1122225155 - 2²⁰ = 1121176579 is a prime.

It is a Duffinian 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, 1351664 + ... + 1352493.

It is an arithmetic number, because the mean of its divisors is an integer number (170361954).

Almost surely, 2^1122225155 is an apocalyptic number.

1122225155 is a deficient number, since it is larger than the sum of its proper divisors (240670477).

1122225155 is an equidigital number, since it uses as much as digits as its factorization.

1122225155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704245.

The product of its digits is 2000, while the sum is 26.

The square root of 1122225155 is about 33499.6291770521. The cubic root of 1122225155 is about 1039.1861097130.

Adding to 1122225155 its reverse (5515222211), we get a palindrome (6637447366).

The spelling of 1122225155 in words is "one billion, one hundred twenty-two million, two hundred twenty-five thousand, one hundred fifty-five".