1223212763 has 2 divisors, whose sum is σ = 1223212764. Its totient is φ = 1223212762.

The previous prime is 1223212751. The next prime is 1223212801. The reversal of 1223212763 is 3672123221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223212763 - 2⁶ = 1223212699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223212733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611606381 + 611606382.

It is an arithmetic number, because the mean of its divisors is an integer number (611606382).

Almost surely, 2^1223212763 is an apocalyptic number.

1223212763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223212763 is an equidigital number, since it uses as much as digits as its factorization.

1223212763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 1223212763 is about 34974.4587234742. The cubic root of 1223212763 is about 1069.4668677827.

Adding to 1223212763 its reverse (3672123221), we get a palindrome (4895335984).

The spelling of 1223212763 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, seven hundred sixty-three".