1155522122 has 8 divisors (see below), whose sum is σ = 1736396676. Its totient is φ = 576723232.

The previous prime is 1155522077. The next prime is 1155522143. The reversal of 1155522122 is 2212255511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1151991481 + 3530641 = 33941^2 + 1879^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1155522091 and 1155522100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517523 + ... + 519750.

Almost surely, 2^1155522122 is an apocalyptic number.

1155522122 is a deficient number, since it is larger than the sum of its proper divisors (580874554).

1155522122 is a wasteful number, since it uses less digits than its factorization.

1155522122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037832.

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

The square root of 1155522122 is about 33992.9716559173. The cubic root of 1155522122 is about 1049.3638238516.

Adding to 1155522122 its reverse (2212255511), we get a palindrome (3367777633).

The spelling of 1155522122 in words is "one billion, one hundred fifty-five million, five hundred twenty-two thousand, one hundred twenty-two".