3221121203 has 8 divisors (see below), whose sum is σ = 3232120320. Its totient is φ = 3210141960.

The previous prime is 3221121191. The next prime is 3221121209. The reversal of 3221121203 is 3021211223.

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 3221121203 - 2⁶ = 3221121139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221121209) 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, 365078 + ... + 373796.

It is an arithmetic number, because the mean of its divisors is an integer number (404015040).

Almost surely, 2^3221121203 is an apocalyptic number.

3221121203 is a deficient number, since it is larger than the sum of its proper divisors (10999117).

3221121203 is an equidigital number, since it uses as much as digits as its factorization.

3221121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937.

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

The square root of 3221121203 is about 56754.9222799221. The cubic root of 3221121203 is about 1476.8476247812.

Adding to 3221121203 its reverse (3021211223), we get a palindrome (6242332426).

The spelling of 3221121203 in words is "three billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred three".