3221120223231 has 4 divisors (see below), whose sum is σ = 4294826964312. Its totient is φ = 2147413482152.

The previous prime is 3221120223199. The next prime is 3221120223271. The reversal of 3221120223231 is 1323220211223.

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

It is a cyclic number.

It is not a de Polignac number, because 3221120223231 - 2⁵ = 3221120223199 is a prime.

It is a super-2 number, since 2×3221120223231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221120223271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536853370536 + ... + 536853370541.

It is an arithmetic number, because the mean of its divisors is an integer number (1073706741078).

Almost surely, 2^{3221120223231} is an apocalyptic number.

3221120223231 is a deficient number, since it is larger than the sum of its proper divisors (1073706741081).

3221120223231 is a wasteful number, since it uses less digits than its factorization.

3221120223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073706741080.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 3221120223231 its reverse (1323220211223), we get a palindrome (4544340434454).

The spelling of 3221120223231 in words is "three trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirty-one".