122020427 has 2 divisors, whose sum is σ = 122020428. Its totient is φ = 122020426.

The previous prime is 122020417. The next prime is 122020447. The reversal of 122020427 is 724020221.

It is a happy number.

It is an a-pointer prime, because the next prime (122020447) can be obtained adding 122020427 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122020427 - 2¹² = 122016331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122020399 and 122020408.

It is not a weakly prime, because it can be changed into another prime (122020417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010213 + 61010214.

It is an arithmetic number, because the mean of its divisors is an integer number (61010214).

Almost surely, 2^122020427 is an apocalyptic number.

122020427 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020427 is an equidigital number, since it uses as much as digits as its factorization.

122020427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 122020427 is about 11046.2856653266. The cubic root of 122020427 is about 495.9952455211.

Adding to 122020427 its reverse (724020221), we get a palindrome (846040648).

The spelling of 122020427 in words is "one hundred twenty-two million, twenty thousand, four hundred twenty-seven".