1221304034 has 8 divisors (see below), whose sum is σ = 1832292588. Its totient is φ = 610539840.

The previous prime is 1221304033. The next prime is 1221304037. The reversal of 1221304034 is 4304031221.

It can be written as a sum of positive squares in 2 ways, for example, as 717436225 + 503867809 = 26785^2 + 22447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1221303997 and 1221304015.

It is not an unprimeable number, because it can be changed into a prime (1221304033) 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, 41747 + ... + 64694.

Almost surely, 2^1221304034 is an apocalyptic number.

1221304034 is a deficient number, since it is larger than the sum of its proper divisors (610988554).

1221304034 is a wasteful number, since it uses less digits than its factorization.

1221304034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112180.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1221304034 is about 34947.1605999686. The cubic root of 1221304034 is about 1068.9103047209.

Adding to 1221304034 its reverse (4304031221), we get a palindrome (5525335255).

The spelling of 1221304034 in words is "one billion, two hundred twenty-one million, three hundred four thousand, thirty-four".