1201223321 has 8 divisors (see below), whose sum is σ = 1231925760. Its totient is φ = 1170735328.

The previous prime is 1201223279. The next prime is 1201223327. The reversal of 1201223321 is 1233221021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201223321 - 2²² = 1197029017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201223321.

It is not an unprimeable number, because it can be changed into a prime (1201223327) 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, 42236 + ... + 64701.

It is an arithmetic number, because the mean of its divisors is an integer number (153990720).

Almost surely, 2^1201223321 is an apocalyptic number.

It is an amenable number.

1201223321 is a deficient number, since it is larger than the sum of its proper divisors (30702439).

1201223321 is a wasteful number, since it uses less digits than its factorization.

1201223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107223.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1201223321 is about 34658.6687713190. The cubic root of 1201223321 is about 1063.0195500293.

Adding to 1201223321 its reverse (1233221021), we get a palindrome (2434444342).

The spelling of 1201223321 in words is "one billion, two hundred one million, two hundred twenty-three thousand, three hundred twenty-one".