1133222021 has 2 divisors, whose sum is σ = 1133222022. Its totient is φ = 1133222020.

The previous prime is 1133222003. The next prime is 1133222063. The reversal of 1133222021 is 1202223311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985332100 + 147889921 = 31390^2 + 12161^2 .

It is an emirp because it is prime and its reverse (1202223311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1133222021 - 2¹⁴ = 1133205637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133222221) 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 as a sum of consecutive naturals, namely, 566611010 + 566611011.

It is an arithmetic number, because the mean of its divisors is an integer number (566611011).

Almost surely, 2^1133222021 is an apocalyptic number.

It is an amenable number.

1133222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133222021 is an equidigital number, since it uses as much as digits as its factorization.

1133222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1133222021 is about 33663.3631861108. The cubic root of 1133222021 is about 1042.5694666237.

Adding to 1133222021 its reverse (1202223311), we get a palindrome (2335445332).

The spelling of 1133222021 in words is "one billion, one hundred thirty-three million, two hundred twenty-two thousand, twenty-one".