122251429 has 2 divisors, whose sum is σ = 122251430. Its totient is φ = 122251428.

The previous prime is 122251399. The next prime is 122251433. The reversal of 122251429 is 924152221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106131204 + 16120225 = 10302^2 + 4015^2 .

It is an emirp because it is prime and its reverse (924152221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122251429 - 2¹¹ = 122249381 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122251397 and 122251406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122251439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61125714 + 61125715.

It is an arithmetic number, because the mean of its divisors is an integer number (61125715).

Almost surely, 2^122251429 is an apocalyptic number.

It is an amenable number.

122251429 is a deficient number, since it is larger than the sum of its proper divisors (1).

122251429 is an equidigital number, since it uses as much as digits as its factorization.

122251429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 122251429 is about 11056.7368151729. The cubic root of 122251429 is about 496.3080446965.

The spelling of 122251429 in words is "one hundred twenty-two million, two hundred fifty-one thousand, four hundred twenty-nine".