1122344221 has 2 divisors, whose sum is σ = 1122344222. Its totient is φ = 1122344220.

The previous prime is 1122344191. The next prime is 1122344261. The reversal of 1122344221 is 1224432211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 957221721 + 165122500 = 30939^2 + 12850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122344221 - 2⁵ = 1122344189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122344192 and 1122344201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122344261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561172110 + 561172111.

It is an arithmetic number, because the mean of its divisors is an integer number (561172111).

Almost surely, 2^1122344221 is an apocalyptic number.

It is an amenable number.

1122344221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122344221 is an equidigital number, since it uses as much as digits as its factorization.

1122344221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 1122344221 is about 33501.4062540664. The cubic root of 1122344221 is about 1039.2228603173. Note that the first 3 decimals are identical.

Adding to 1122344221 its reverse (1224432211), we get a palindrome (2346776432).

The spelling of 1122344221 in words is "one billion, one hundred twenty-two million, three hundred forty-four thousand, two hundred twenty-one".