122020891229 has 2 divisors, whose sum is σ = 122020891230. Its totient is φ = 122020891228.

The previous prime is 122020891217. The next prime is 122020891271. The reversal of 122020891229 is 922198020221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107063112025 + 14957779204 = 327205^2 + 122302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122020891229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122020891192 and 122020891201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122020891529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010445614 + 61010445615.

It is an arithmetic number, because the mean of its divisors is an integer number (61010445615).

Almost surely, 2^122020891229 is an apocalyptic number.

It is an amenable number.

122020891229 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020891229 is an equidigital number, since it uses as much as digits as its factorization.

122020891229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 122020891229 in words is "one hundred twenty-two billion, twenty million, eight hundred ninety-one thousand, two hundred twenty-nine".