122012120189 has 2 divisors, whose sum is σ = 122012120190. Its totient is φ = 122012120188.

The previous prime is 122012120161. The next prime is 122012120213. The reversal of 122012120189 is 981021210221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89680484089 + 32331636100 = 299467^2 + 179810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122012120189 is a prime.

It is a super-3 number, since 3×122012120189³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012120149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006060094 + 61006060095.

It is an arithmetic number, because the mean of its divisors is an integer number (61006060095).

Almost surely, 2^122012120189 is an apocalyptic number.

It is an amenable number.

122012120189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012120189 is an equidigital number, since it uses as much as digits as its factorization.

122012120189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 122012120189 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred eighty-nine".