1221134341 has 12 divisors (see below), whose sum is σ = 1421073612. Its totient is φ = 1046266368.

The previous prime is 1221134329. The next prime is 1221134357. The reversal of 1221134341 is 1434311221.

It can be written as a sum of positive squares in 2 ways, for example, as 1200622500 + 20511841 = 34650^2 + 4529^2 .

It is not a de Polignac number, because 1221134341 - 2¹¹ = 1221132293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221134311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226311 + ... + 231643.

It is an arithmetic number, because the mean of its divisors is an integer number (118422801).

Almost surely, 2^1221134341 is an apocalyptic number.

It is an amenable number.

1221134341 is a deficient number, since it is larger than the sum of its proper divisors (199939271).

1221134341 is an equidigital number, since it uses as much as digits as its factorization.

1221134341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020 (or 10013 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1221134341 is about 34944.7326645948. The cubic root of 1221134341 is about 1068.8607961648.

Adding to 1221134341 its reverse (1434311221), we get a palindrome (2655445562).

The spelling of 1221134341 in words is "one billion, two hundred twenty-one million, one hundred thirty-four thousand, three hundred forty-one".