1122051155 has 4 divisors (see below), whose sum is σ = 1346461392. Its totient is φ = 897640920.

The previous prime is 1122051143. The next prime is 1122051157. The reversal of 1122051155 is 5511502211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1122051155 - 2¹⁰ = 1122050131 is a prime.

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 1122051155.

It is not an unprimeable number, because it can be changed into a prime (1122051157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112205111 + ... + 112205120.

It is an arithmetic number, because the mean of its divisors is an integer number (336615348).

Almost surely, 2^1122051155 is an apocalyptic number.

1122051155 is a deficient number, since it is larger than the sum of its proper divisors (224410237).

1122051155 is an equidigital number, since it uses as much as digits as its factorization.

1122051155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224410236.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1122051155 is about 33497.0320327040. The cubic root of 1122051155 is about 1039.1323986467.

Adding to 1122051155 its reverse (5511502211), we get a palindrome (6633553366).

The spelling of 1122051155 in words is "one billion, one hundred twenty-two million, fifty-one thousand, one hundred fifty-five".