322221121 has 2 divisors, whose sum is σ = 322221122. Its totient is φ = 322221120.

The previous prime is 322221101. The next prime is 322221139. The reversal of 322221121 is 121122223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308494096 + 13727025 = 17564^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 322221121 - 2¹³ = 322212929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 322221095 and 322221104.

It is not a weakly prime, because it can be changed into another prime (322221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161110560 + 161110561.

It is an arithmetic number, because the mean of its divisors is an integer number (161110561).

Almost surely, 2^322221121 is an apocalyptic number.

It is an amenable number.

322221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

322221121 is an equidigital number, since it uses as much as digits as its factorization.

322221121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 16.

The square root of 322221121 is about 17950.5186833139. The cubic root of 322221121 is about 685.5692577362.

Adding to 322221121 its reverse (121122223), we get a palindrome (443343344).

The spelling of 322221121 in words is "three hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".