1222223203021 has 2 divisors, whose sum is σ = 1222223203022. Its totient is φ = 1222223203020.

The previous prime is 1222223202929. The next prime is 1222223203051. The reversal of 1222223203021 is 1203023222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 818726377225 + 403496825796 = 904835^2 + 635214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222223203021 - 2⁹ = 1222223202509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222223202983 and 1222223203001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222223203051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611111601510 + 611111601511.

It is an arithmetic number, because the mean of its divisors is an integer number (611111601511).

Almost surely, 2^{1222223203021} is an apocalyptic number.

It is an amenable number.

1222223203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222223203021 is an equidigital number, since it uses as much as digits as its factorization.

1222223203021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1222223203021 its reverse (1203023222221), we get a palindrome (2425246425242).

The spelling of 1222223203021 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-three million, two hundred three thousand, twenty-one".