1221104302 has 8 divisors (see below), whose sum is σ = 1998170712. Its totient is φ = 555047400.

The previous prime is 1221104273. The next prime is 1221104309. The reversal of 1221104302 is 2034011221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221104309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27752349 + ... + 27752392.

It is an arithmetic number, because the mean of its divisors is an integer number (249771339).

Almost surely, 2^1221104302 is an apocalyptic number.

1221104302 is a deficient number, since it is larger than the sum of its proper divisors (777066410).

1221104302 is a wasteful number, since it uses less digits than its factorization.

1221104302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55504754.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1221104302 is about 34944.3028546858. The cubic root of 1221104302 is about 1068.8520316984.

Adding to 1221104302 its reverse (2034011221), we get a palindrome (3255115523).

The spelling of 1221104302 in words is "one billion, two hundred twenty-one million, one hundred four thousand, three hundred two".