422121305 has 16 divisors (see below), whose sum is σ = 537166080. Its totient is φ = 317344512.

The previous prime is 422121251. The next prime is 422121307. The reversal of 422121305 is 503121224.

It is a cyclic number.

It is not a de Polignac number, because 422121305 - 2¹² = 422117209 is a prime.

It is a super-2 number, since 2×422121305² = 356372792269806050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422121307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57662 + ... + 64568.

It is an arithmetic number, because the mean of its divisors is an integer number (33572880).

Almost surely, 2^422121305 is an apocalyptic number.

It is an amenable number.

422121305 is a deficient number, since it is larger than the sum of its proper divisors (115044775).

422121305 is a wasteful number, since it uses less digits than its factorization.

422121305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 422121305 is about 20545.5908895315. The cubic root of 422121305 is about 750.1459301225.

Adding to 422121305 its reverse (503121224), we get a palindrome (925242529).

The spelling of 422121305 in words is "four hundred twenty-two million, one hundred twenty-one thousand, three hundred five".