1222513453 has 16 divisors (see below), whose sum is σ = 1424142720. Its totient is φ = 1027713600.

The previous prime is 1222513433. The next prime is 1222513459. The reversal of 1222513453 is 3543152221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222513453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222513459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187183 + ... + 193603.

It is an arithmetic number, because the mean of its divisors is an integer number (89008920).

Almost surely, 2^1222513453 is an apocalyptic number.

It is an amenable number.

1222513453 is a deficient number, since it is larger than the sum of its proper divisors (201629267).

1222513453 is an equidigital number, since it uses as much as digits as its factorization.

1222513453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948.

The product of its digits is 7200, while the sum is 28.

The square root of 1222513453 is about 34964.4598556877. The cubic root of 1222513453 is about 1069.2630244107.

Adding to 1222513453 its reverse (3543152221), we get a palindrome (4765665674).

The spelling of 1222513453 in words is "one billion, two hundred twenty-two million, five hundred thirteen thousand, four hundred fifty-three".