1021224221233 has 2 divisors, whose sum is σ = 1021224221234. Its totient is φ = 1021224221232.

The previous prime is 1021224221191. The next prime is 1021224221243. The reversal of 1021224221233 is 3321224221201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949363768609 + 71860452624 = 974353^2 + 268068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021224221233 - 2¹³ = 1021224213041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021224221198 and 1021224221207.

It is not a weakly prime, because it can be changed into another prime (1021224221243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510612110616 + 510612110617.

It is an arithmetic number, because the mean of its divisors is an integer number (510612110617).

Almost surely, 2^{1021224221233} is an apocalyptic number.

It is an amenable number.

1021224221233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021224221233 is an equidigital number, since it uses as much as digits as its factorization.

1021224221233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1021224221233 its reverse (3321224221201), we get a palindrome (4342448442434).

The spelling of 1021224221233 in words is "one trillion, twenty-one billion, two hundred twenty-four million, two hundred twenty-one thousand, two hundred thirty-three".