121121221304 has 16 divisors (see below), whose sum is σ = 230951482200. Its totient is φ = 59534159392.

The previous prime is 121121221231. The next prime is 121121221307. The reversal of 121121221304 is 403122121121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121221307) 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, 128305907 + ... + 128306850.

Almost surely, 2^121121221304 is an apocalyptic number.

It is an amenable number.

121121221304 is a deficient number, since it is larger than the sum of its proper divisors (109830260896).

121121221304 is a wasteful number, since it uses less digits than its factorization.

121121221304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256612822 (or 256612818 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121121221304 its reverse (403122121121), we get a palindrome (524243342425).

The spelling of 121121221304 in words is "one hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, three hundred four".