1221200314 has 4 divisors (see below), whose sum is σ = 1831800474. Its totient is φ = 610600156.

The previous prime is 1221200311. The next prime is 1221200333. The reversal of 1221200314 is 4130021221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1136836089 + 84364225 = 33717^2 + 9185^2 .

It is not an unprimeable number, because it can be changed into a prime (1221200311) 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 as a sum of consecutive naturals, namely, 305300077 + ... + 305300080.

Almost surely, 2^1221200314 is an apocalyptic number.

1221200314 is a deficient number, since it is larger than the sum of its proper divisors (610600160).

1221200314 is an equidigital number, since it uses as much as digits as its factorization.

1221200314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610600159.

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

The square root of 1221200314 is about 34945.6766138531. The cubic root of 1221200314 is about 1068.8800445749.

Adding to 1221200314 its reverse (4130021221), we get a palindrome (5351221535).

The spelling of 1221200314 in words is "one billion, two hundred twenty-one million, two hundred thousand, three hundred fourteen".