4222201121 has 4 divisors (see below), whose sum is σ = 4243633812. Its totient is φ = 4200768432.

The previous prime is 4222201117. The next prime is 4222201127. The reversal of 4222201121 is 1211022224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3981610000 + 240591121 = 63100^2 + 15511^2 .

It is a cyclic number.

It is not a de Polignac number, because 4222201121 - 2² = 4222201117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4222201121.

It is not an unprimeable number, because it can be changed into a prime (4222201127) 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, 10716050 + ... + 10716443.

It is an arithmetic number, because the mean of its divisors is an integer number (1060908453).

Almost surely, 2^4222201121 is an apocalyptic number.

It is an amenable number.

4222201121 is a deficient number, since it is larger than the sum of its proper divisors (21432691).

4222201121 is a wasteful number, since it uses less digits than its factorization.

4222201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21432690.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4222201121 is about 64978.4665947112. The cubic root of 4222201121 is about 1616.2665027553.

Adding to 4222201121 its reverse (1211022224), we get a palindrome (5433223345).

The spelling of 4222201121 in words is "four billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-one".