422129401 has 2 divisors, whose sum is σ = 422129402. Its totient is φ = 422129400.

The previous prime is 422129381. The next prime is 422129417. The reversal of 422129401 is 104921224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421275625 + 853776 = 20525^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 422129401 - 2⁵ = 422129369 is a prime.

It is not a weakly prime, because it can be changed into another prime (422129101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211064700 + 211064701.

It is an arithmetic number, because the mean of its divisors is an integer number (211064701).

Almost surely, 2^422129401 is an apocalyptic number.

It is an amenable number.

422129401 is a deficient number, since it is larger than the sum of its proper divisors (1).

422129401 is an equidigital number, since it uses as much as digits as its factorization.

422129401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 422129401 is about 20545.7879138280. The cubic root of 422129401 is about 750.1507258551.

The spelling of 422129401 in words is "four hundred twenty-two million, one hundred twenty-nine thousand, four hundred one".