422121413 has 4 divisors (see below), whose sum is σ = 482424480. Its totient is φ = 361818348.

The previous prime is 422121397. The next prime is 422121421. The reversal of 422121413 is 314121224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422121413 - 2⁴ = 422121397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422121443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30151523 + ... + 30151536.

It is an arithmetic number, because the mean of its divisors is an integer number (120606120).

Almost surely, 2^422121413 is an apocalyptic number.

It is an amenable number.

422121413 is a deficient number, since it is larger than the sum of its proper divisors (60303067).

422121413 is an equidigital number, since it uses as much as digits as its factorization.

422121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60303066.

The product of its digits is 384, while the sum is 20.

The square root of 422121413 is about 20545.5935178325. The cubic root of 422121413 is about 750.1459940976.

Adding to 422121413 its reverse (314121224), we get a palindrome (736242637).

The spelling of 422121413 in words is "four hundred twenty-two million, one hundred twenty-one thousand, four hundred thirteen".