1122045155 has 64 divisors (see below), whose sum is σ = 1775886336. Its totient is φ = 660096000.

The previous prime is 1122045151. The next prime is 1122045157. The reversal of 1122045155 is 5515402211.

It is not a de Polignac number, because 1122045155 - 2² = 1122045151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122045151) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 488189 + ... + 490481.

It is an arithmetic number, because the mean of its divisors is an integer number (27748224).

Almost surely, 2^1122045155 is an apocalyptic number.

1122045155 is a deficient number, since it is larger than the sum of its proper divisors (653841181).

1122045155 is a wasteful number, since it uses less digits than its factorization.

1122045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388.

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

The square root of 1122045155 is about 33496.9424724108. The cubic root of 1122045155 is about 1039.1305464420.

Adding to 1122045155 its reverse (5515402211), we get a palindrome (6637447366).

The spelling of 1122045155 in words is "one billion, one hundred twenty-two million, forty-five thousand, one hundred fifty-five".