1221301234 has 8 divisors (see below), whose sum is σ = 1891047168. Its totient is φ = 590952180.

The previous prime is 1221301231. The next prime is 1221301241. The reversal of 1221301234 is 4321031221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1221301231) 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, 9849142 + ... + 9849265.

It is an arithmetic number, because the mean of its divisors is an integer number (236380896).

Almost surely, 2^1221301234 is an apocalyptic number.

1221301234 is a deficient number, since it is larger than the sum of its proper divisors (669745934).

1221301234 is a wasteful number, since it uses less digits than its factorization.

1221301234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19698440.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1221301234 is about 34947.1205394665. The cubic root of 1221301234 is about 1068.9094878479.

Adding to 1221301234 its reverse (4321031221), we get a palindrome (5542332455).

The spelling of 1221301234 in words is "one billion, two hundred twenty-one million, three hundred one thousand, two hundred thirty-four".