1122341221 has 4 divisors (see below), whose sum is σ = 1122411244. Its totient is φ = 1122271200.

The previous prime is 1122341219. The next prime is 1122341243. The reversal of 1122341221 is 1221432211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 60233121 + 1062108100 = 7761^2 + 32590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122341221 - 2¹ = 1122341219 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 (1122344221) 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, 2251 + ... + 47431.

It is an arithmetic number, because the mean of its divisors is an integer number (280602811).

Almost surely, 2^1122341221 is an apocalyptic number.

It is an amenable number.

1122341221 is a deficient number, since it is larger than the sum of its proper divisors (70023).

1122341221 is an equidigital number, since it uses as much as digits as its factorization.

1122341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70022.

The product of its digits is 192, while the sum is 19.

The square root of 1122341221 is about 33501.3614797966. The cubic root of 1122341221 is about 1039.2219343770.

Adding to 1122341221 its reverse (1221432211), we get a palindrome (2343773432).

The spelling of 1122341221 in words is "one billion, one hundred twenty-two million, three hundred forty-one thousand, two hundred twenty-one".