122266493 has 2 divisors, whose sum is σ = 122266494. Its totient is φ = 122266492.

The previous prime is 122266489. The next prime is 122266579. The reversal of 122266493 is 394662221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86899684 + 35366809 = 9322^2 + 5947^2 .

It is a cyclic number.

It is not a de Polignac number, because 122266493 - 2² = 122266489 is a prime.

It is equal to p_6963371 and since 122266493 and 6963371 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122266423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61133246 + 61133247.

It is an arithmetic number, because the mean of its divisors is an integer number (61133247).

Almost surely, 2^122266493 is an apocalyptic number.

It is an amenable number.

122266493 is a deficient number, since it is larger than the sum of its proper divisors (1).

122266493 is an equidigital number, since it uses as much as digits as its factorization.

122266493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 122266493 is about 11057.4180078353. The cubic root of 122266493 is about 496.3284291271.

The spelling of 122266493 in words is "one hundred twenty-two million, two hundred sixty-six thousand, four hundred ninety-three".