1202331221 has 8 divisors (see below), whose sum is σ = 1479792384. Its totient is φ = 951294960.

The previous prime is 1202331217. The next prime is 1202331223. The reversal of 1202331221 is 1221332021.

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

It is not a de Polignac number, because 1202331221 - 2² = 1202331217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202331221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202331223) 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, 6606125 + ... + 6606306.

It is an arithmetic number, because the mean of its divisors is an integer number (184974048).

Almost surely, 2^1202331221 is an apocalyptic number.

It is an amenable number.

1202331221 is a deficient number, since it is larger than the sum of its proper divisors (277461163).

1202331221 is a wasteful number, since it uses less digits than its factorization.

1202331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212451.

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

The square root of 1202331221 is about 34674.6481020356. The cubic root of 1202331221 is about 1063.3462607112.

Adding to 1202331221 its reverse (1221332021), we get a palindrome (2423663242).

The spelling of 1202331221 in words is "one billion, two hundred two million, three hundred thirty-one thousand, two hundred twenty-one".