1222400063 has 2 divisors, whose sum is σ = 1222400064. Its totient is φ = 1222400062.

The previous prime is 1222400051. The next prime is 1222400161. The reversal of 1222400063 is 3600042221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222400063 - 2¹⁸ = 1222137919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222402063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611200031 + 611200032.

It is an arithmetic number, because the mean of its divisors is an integer number (611200032).

Almost surely, 2^1222400063 is an apocalyptic number.

1222400063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222400063 is an equidigital number, since it uses as much as digits as its factorization.

1222400063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1222400063 is about 34962.8383144161. The cubic root of 1222400063 is about 1069.2299647927.

Adding to 1222400063 its reverse (3600042221), we get a palindrome (4822442284).

The spelling of 1222400063 in words is "one billion, two hundred twenty-two million, four hundred thousand, sixty-three".