422121529 has 2 divisors, whose sum is σ = 422121530. Its totient is φ = 422121528.

The previous prime is 422121517. The next prime is 422121533. The reversal of 422121529 is 925121224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317018025 + 105103504 = 17805^2 + 10252^2 .

It is a cyclic number.

It is not a de Polignac number, because 422121529 - 2¹³ = 422113337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422121497 and 422121506.

It is not a weakly prime, because it can be changed into another prime (422121229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211060764 + 211060765.

It is an arithmetic number, because the mean of its divisors is an integer number (211060765).

Almost surely, 2^422121529 is an apocalyptic number.

It is an amenable number.

422121529 is a deficient number, since it is larger than the sum of its proper divisors (1).

422121529 is an equidigital number, since it uses as much as digits as its factorization.

422121529 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 422121529 is about 20545.5963408220. The cubic root of 422121529 is about 750.1460628116.

The spelling of 422121529 in words is "four hundred twenty-two million, one hundred twenty-one thousand, five hundred twenty-nine".