1422221121 has 24 divisors (see below), whose sum is σ = 2087729280. Its totient is φ = 932813856.

The previous prime is 1422221107. The next prime is 1422221153. The reversal of 1422221121 is 1211222241.

1422221121 is a `hidden beast` number, since 1 + 422 + 221 + 1 + 21 = 666.

It is not a de Polignac number, because 1422221121 - 2⁵ = 1422221089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1422221094 and 1422221103.

It is not an unprimeable number, because it can be changed into a prime (1422226121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204910 + ... + 211736.

It is an arithmetic number, because the mean of its divisors is an integer number (86988720).

Almost surely, 2^1422221121 is an apocalyptic number.

It is an amenable number.

1422221121 is a deficient number, since it is larger than the sum of its proper divisors (665508159).

1422221121 is a wasteful number, since it uses less digits than its factorization.

1422221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205 (or 7202 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 1422221121 is about 37712.3470629978. The cubic root of 1422221121 is about 1124.5765968168.

Adding to 1422221121 its reverse (1211222241), we get a palindrome (2633443362).

The spelling of 1422221121 in words is "one billion, four hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".