1021222133 has 2 divisors, whose sum is σ = 1021222134. Its totient is φ = 1021222132.

The previous prime is 1021222087. The next prime is 1021222141. The reversal of 1021222133 is 3312221201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004065969 + 17156164 = 31687^2 + 4142^2 .

It is an emirp because it is prime and its reverse (3312221201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021222133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021222933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510611066 + 510611067.

It is an arithmetic number, because the mean of its divisors is an integer number (510611067).

Almost surely, 2^1021222133 is an apocalyptic number.

It is an amenable number.

1021222133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021222133 is an equidigital number, since it uses as much as digits as its factorization.

1021222133 is an evil number, because the sum of its binary digits is even.

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

The square root of 1021222133 is about 31956.5663518470. The cubic root of 1021222133 is about 1007.0245840106.

Adding to 1021222133 its reverse (3312221201), we get a palindrome (4333443334).

The spelling of 1021222133 in words is "one billion, twenty-one million, two hundred twenty-two thousand, one hundred thirty-three".