122247887 has 2 divisors, whose sum is σ = 122247888. Its totient is φ = 122247886.

The previous prime is 122247869. The next prime is 122247913. The reversal of 122247887 is 788742221.

It is a weak prime.

It is an emirp because it is prime and its reverse (788742221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122247887 - 2¹² = 122243791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122241887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61123943 + 61123944.

It is an arithmetic number, because the mean of its divisors is an integer number (61123944).

Almost surely, 2^122247887 is an apocalyptic number.

122247887 is a deficient number, since it is larger than the sum of its proper divisors (1).

122247887 is an equidigital number, since it uses as much as digits as its factorization.

122247887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 41.

The square root of 122247887 is about 11056.5766401721. The cubic root of 122247887 is about 496.3032514599.

The spelling of 122247887 in words is "one hundred twenty-two million, two hundred forty-seven thousand, eight hundred eighty-seven".