122186249893 has 2 divisors, whose sum is σ = 122186249894. Its totient is φ = 122186249892.

The previous prime is 122186249863. The next prime is 122186249909. The reversal of 122186249893 is 398942681221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109016851329 + 13169398564 = 330177^2 + 114758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122186249893 is a prime.

It is a super-2 number, since 2×122186249893² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122186249863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61093124946 + 61093124947.

It is an arithmetic number, because the mean of its divisors is an integer number (61093124947).

Almost surely, 2^122186249893 is an apocalyptic number.

It is an amenable number.

122186249893 is a deficient number, since it is larger than the sum of its proper divisors (1).

122186249893 is an equidigital number, since it uses as much as digits as its factorization.

122186249893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The spelling of 122186249893 in words is "one hundred twenty-two billion, one hundred eighty-six million, two hundred forty-nine thousand, eight hundred ninety-three".