202420422247 has 2 divisors, whose sum is σ = 202420422248. Its totient is φ = 202420422246.

The previous prime is 202420422223. The next prime is 202420422257. The reversal of 202420422247 is 742224024202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202420422247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202420422257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101210211123 + 101210211124.

It is an arithmetic number, because the mean of its divisors is an integer number (101210211124).

Almost surely, 2^202420422247 is an apocalyptic number.

202420422247 is a deficient number, since it is larger than the sum of its proper divisors (1).

202420422247 is an equidigital number, since it uses as much as digits as its factorization.

202420422247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 31.

Adding to 202420422247 its reverse (742224024202), we get a palindrome (944644446449).

The spelling of 202420422247 in words is "two hundred two billion, four hundred twenty million, four hundred twenty-two thousand, two hundred forty-seven".