122084891 has 2 divisors, whose sum is σ = 122084892. Its totient is φ = 122084890.

The previous prime is 122084873. The next prime is 122084903. The reversal of 122084891 is 198480221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122084891 - 2²⁶ = 54976027 is a prime.

It is a super-2 number, since 2×122084891² = 29809441220963762, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6953615 and since 122084891 and 6953615 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (122084791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61042445 + 61042446.

It is an arithmetic number, because the mean of its divisors is an integer number (61042446).

Almost surely, 2^122084891 is an apocalyptic number.

122084891 is a deficient number, since it is larger than the sum of its proper divisors (1).

122084891 is an equidigital number, since it uses as much as digits as its factorization.

122084891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 122084891 is about 11049.2031839405. The cubic root of 122084891 is about 496.0825757310.

The spelling of 122084891 in words is "one hundred twenty-two million, eighty-four thousand, eight hundred ninety-one".