1222326401 has 4 divisors (see below), whose sum is σ = 1294227972. Its totient is φ = 1150424832.

The previous prime is 1222326383. The next prime is 1222326407. The reversal of 1222326401 is 1046232221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1046232221 = 19429 ⋅53849.

It can be written as a sum of positive squares in 2 ways, for example, as 997296400 + 225030001 = 31580^2 + 15001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222326401 - 2⁶ = 1222326337 is a prime.

It is a super-2 number, since 2×1222326401² = 2988163661163225602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222326407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35950760 + ... + 35950793.

It is an arithmetic number, because the mean of its divisors is an integer number (323556993).

Almost surely, 2^1222326401 is an apocalyptic number.

It is an amenable number.

1222326401 is a deficient number, since it is larger than the sum of its proper divisors (71901571).

1222326401 is an equidigital number, since it uses as much as digits as its factorization.

1222326401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71901570.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1222326401 is about 34961.7848657645. The cubic root of 1222326401 is about 1069.2084870452.

Adding to 1222326401 its reverse (1046232221), we get a palindrome (2268558622).

The spelling of 1222326401 in words is "one billion, two hundred twenty-two million, three hundred twenty-six thousand, four hundred one".