422121121211 has 4 divisors (see below), whose sum is σ = 422391886800. Its totient is φ = 421850355624.

The previous prime is 422121121193. The next prime is 422121121243. The reversal of 422121121211 is 112121121224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422121121211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422121123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135380456 + ... + 135383573.

It is an arithmetic number, because the mean of its divisors is an integer number (105597971700).

Almost surely, 2^422121121211 is an apocalyptic number.

422121121211 is a deficient number, since it is larger than the sum of its proper divisors (270765589).

422121121211 is a wasteful number, since it uses less digits than its factorization.

422121121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270765588.

The product of its digits is 128, while the sum is 20.

Adding to 422121121211 its reverse (112121121224), we get a palindrome (534242242435).

The spelling of 422121121211 in words is "four hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".