1122322021 has 2 divisors, whose sum is σ = 1122322022. Its totient is φ = 1122322020.

The previous prime is 1122322009. The next prime is 1122322027. The reversal of 1122322021 is 1202232211.

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., 915365025 + 206956996 = 30255^2 + 14386^2 .

It is an emirp because it is prime and its reverse (1202232211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122322021 - 2¹⁵ = 1122289253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122321986 and 1122322004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122322027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561161010 + 561161011.

It is an arithmetic number, because the mean of its divisors is an integer number (561161011).

Almost surely, 2^1122322021 is an apocalyptic number.

It is an amenable number.

1122322021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122322021 is an equidigital number, since it uses as much as digits as its factorization.

1122322021 is an evil number, because the sum of its binary digits is even.

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

The square root of 1122322021 is about 33501.0749230528. The cubic root of 1122322021 is about 1039.2160083197.

Adding to 1122322021 its reverse (1202232211), we get a palindrome (2324554232).

The spelling of 1122322021 in words is "one billion, one hundred twenty-two million, three hundred twenty-two thousand, twenty-one".