1122051161 has 16 divisors (see below), whose sum is σ = 1399731840. Its totient is φ = 873818880.

The previous prime is 1122051157. The next prime is 1122051167. The reversal of 1122051161 is 1611502211.

It is not a de Polignac number, because 1122051161 - 2² = 1122051157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122051167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183095 + ... + 189123.

It is an arithmetic number, because the mean of its divisors is an integer number (87483240).

Almost surely, 2^1122051161 is an apocalyptic number.

1122051161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122051161 is a deficient number, since it is larger than the sum of its proper divisors (277680679).

1122051161 is a wasteful number, since it uses less digits than its factorization.

1122051161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 1122051161 is about 33497.0321222642. The cubic root of 1122051161 is about 1039.1324004989.

Adding to 1122051161 its reverse (1611502211), we get a palindrome (2733553372).

The spelling of 1122051161 in words is "one billion, one hundred twenty-two million, fifty-one thousand, one hundred sixty-one".