1220502247 has 2 divisors, whose sum is σ = 1220502248. Its totient is φ = 1220502246.

The previous prime is 1220502211. The next prime is 1220502253. The reversal of 1220502247 is 7422050221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7422050221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220502247 - 2²⁷ = 1086284519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220502287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610251123 + 610251124.

It is an arithmetic number, because the mean of its divisors is an integer number (610251124).

Almost surely, 2^1220502247 is an apocalyptic number.

1220502247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220502247 is an equidigital number, since it uses as much as digits as its factorization.

1220502247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 1220502247 is about 34935.6872982342. The cubic root of 1220502247 is about 1068.6763400461.

Adding to 1220502247 its reverse (7422050221), we get a palindrome (8642552468).

The spelling of 1220502247 in words is "one billion, two hundred twenty million, five hundred two thousand, two hundred forty-seven".