1221411334 has 24 divisors (see below), whose sum is σ = 2164250232. Its totient is φ = 512478720.

The previous prime is 1221411319. The next prime is 1221411353. The reversal of 1221411334 is 4331141221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160539 + ... + 167974.

It is an arithmetic number, because the mean of its divisors is an integer number (90177093).

Almost surely, 2^1221411334 is an apocalyptic number.

1221411334 is a deficient number, since it is larger than the sum of its proper divisors (942838898).

1221411334 is a wasteful number, since it uses less digits than its factorization.

1221411334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328552 (or 328539 counting only the distinct ones).

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

The square root of 1221411334 is about 34948.6957410430. The cubic root of 1221411334 is about 1068.9416075235.

Adding to 1221411334 its reverse (4331141221), we get a palindrome (5552552555).

The spelling of 1221411334 in words is "one billion, two hundred twenty-one million, four hundred eleven thousand, three hundred thirty-four".