122002012189 has 2 divisors, whose sum is σ = 122002012190. Its totient is φ = 122002012188.

The previous prime is 122002012159. The next prime is 122002012219. The reversal of 122002012189 is 981210200221.

It is a balanced prime because it is at equal distance from previous prime (122002012159) and next prime (122002012219).

It can be written as a sum of positive squares in only one way, i.e., 73039386564 + 48962625625 = 270258^2 + 221275^2 .

It is an emirp because it is prime and its reverse (981210200221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122002012189 is a prime.

It is a super-3 number, since 3×122002012189³ (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 (122002012159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001006094 + 61001006095.

It is an arithmetic number, because the mean of its divisors is an integer number (61001006095).

Almost surely, 2^122002012189 is an apocalyptic number.

It is an amenable number.

122002012189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002012189 is an equidigital number, since it uses as much as digits as its factorization.

122002012189 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 28.

The spelling of 122002012189 in words is "one hundred twenty-two billion, two million, twelve thousand, one hundred eighty-nine".