1220222220263 has 2 divisors, whose sum is σ = 1220222220264. Its totient is φ = 1220222220262.

The previous prime is 1220222220209. The next prime is 1220222220281. The reversal of 1220222220263 is 3620222220221.

It is a strong prime.

It is an emirp because it is prime and its reverse (3620222220221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220222220263 - 2³⁴ = 1203042351079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220222220293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111110131 + 610111110132.

It is an arithmetic number, because the mean of its divisors is an integer number (610111110132).

Almost surely, 2^{1220222220263} is an apocalyptic number.

1220222220263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222220263 is an equidigital number, since it uses as much as digits as its factorization.

1220222220263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1220222220263 its reverse (3620222220221), we get a palindrome (4840444440484).

The spelling of 1220222220263 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred sixty-three".