1122228161 has 2 divisors, whose sum is σ = 1122228162. Its totient is φ = 1122228160.

The previous prime is 1122228113. The next prime is 1122228209. The reversal of 1122228161 is 1618222211.

It is a balanced prime because it is at equal distance from previous prime (1122228113) and next prime (1122228209).

It can be written as a sum of positive squares in only one way, i.e., 678915136 + 443313025 = 26056^2 + 21055^2 .

It is an emirp because it is prime and its reverse (1618222211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122228161 - 2²² = 1118033857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122228161.

It is not a weakly prime, because it can be changed into another prime (1122428161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561114080 + 561114081.

It is an arithmetic number, because the mean of its divisors is an integer number (561114081).

Almost surely, 2^1122228161 is an apocalyptic number.

It is an amenable number.

1122228161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122228161 is an equidigital number, since it uses as much as digits as its factorization.

1122228161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 26.

The square root of 1122228161 is about 33499.6740431903. The cubic root of 1122228161 is about 1039.1870375692.

The spelling of 1122228161 in words is "one billion, one hundred twenty-two million, two hundred twenty-eight thousand, one hundred sixty-one".