122272747 has 2 divisors, whose sum is σ = 122272748. Its totient is φ = 122272746.

The previous prime is 122272727. The next prime is 122272763. The reversal of 122272747 is 747272221.

It is a strong prime.

It is an emirp because it is prime and its reverse (747272221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122272747 is a prime.

It is not a weakly prime, because it can be changed into another prime (122272727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61136373 + 61136374.

It is an arithmetic number, because the mean of its divisors is an integer number (61136374).

Almost surely, 2^122272747 is an apocalyptic number.

122272747 is a deficient number, since it is larger than the sum of its proper divisors (1).

122272747 is an equidigital number, since it uses as much as digits as its factorization.

122272747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21952, while the sum is 34.

The square root of 122272747 is about 11057.7008007994. The cubic root of 122272747 is about 496.3368914758.

The spelling of 122272747 in words is "one hundred twenty-two million, two hundred seventy-two thousand, seven hundred forty-seven".