1201221303 has 8 divisors (see below), whose sum is σ = 1607411568. Its totient is φ = 797922624.

The previous prime is 1201221293. The next prime is 1201221313. The reversal of 1201221303 is 3031221021.

It is an interprime number because it is at equal distance from previous prime (1201221293) and next prime (1201221313).

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

It is not a de Polignac number, because 1201221303 - 2⁹ = 1201220791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201221313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721926 + ... + 723587.

It is an arithmetic number, because the mean of its divisors is an integer number (200926446).

Almost surely, 2^1201221303 is an apocalyptic number.

1201221303 is a deficient number, since it is larger than the sum of its proper divisors (406190265).

1201221303 is a wasteful number, since it uses less digits than its factorization.

1201221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445793.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1201221303 is about 34658.6396588210. The cubic root of 1201221303 is about 1063.0189547543.

Adding to 1201221303 its reverse (3031221021), we get a palindrome (4232442324).

The spelling of 1201221303 in words is "one billion, two hundred one million, two hundred twenty-one thousand, three hundred three".