1122401065 has 16 divisors (see below), whose sum is σ = 1407707280. Its totient is φ = 858009600.

The previous prime is 1122401053. The next prime is 1122401069. The reversal of 1122401065 is 5601042211.

It can be written as a sum of positive squares in 8 ways, for example, as 67190809 + 1055210256 = 8197^2 + 32484^2 .

It is not a de Polignac number, because 1122401065 - 2²³ = 1114012457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122401069) 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, 25836 + ... + 53965.

It is an arithmetic number, because the mean of its divisors is an integer number (87981705).

Almost surely, 2^1122401065 is an apocalyptic number.

It is an amenable number.

1122401065 is a deficient number, since it is larger than the sum of its proper divisors (285306215).

1122401065 is an equidigital number, since it uses as much as digits as its factorization.

1122401065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79932.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1122401065 is about 33502.2546256218. The cubic root of 1122401065 is about 1039.2404047230.

Adding to 1122401065 its reverse (5601042211), we get a palindrome (6723443276).

The spelling of 1122401065 in words is "one billion, one hundred twenty-two million, four hundred one thousand, sixty-five".