1222521023 has 2 divisors, whose sum is σ = 1222521024. Its totient is φ = 1222521022.

The previous prime is 1222520993. The next prime is 1222521029. The reversal of 1222521023 is 3201252221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222521023 - 2¹² = 1222516927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222520986 and 1222521004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222521029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611260511 + 611260512.

It is an arithmetic number, because the mean of its divisors is an integer number (611260512).

Almost surely, 2^1222521023 is an apocalyptic number.

1222521023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222521023 is an equidigital number, since it uses as much as digits as its factorization.

1222521023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1222521023 is about 34964.5681083007. The cubic root of 1222521023 is about 1069.2652314223.

Adding to 1222521023 its reverse (3201252221), we get a palindrome (4423773244).

The spelling of 1222521023 in words is "one billion, two hundred twenty-two million, five hundred twenty-one thousand, twenty-three".