3222231001221 has 8 divisors (see below), whose sum is σ = 4296329704960. Its totient is φ = 2148143149152.

The previous prime is 3222231001163. The next prime is 3222231001237. The reversal of 3222231001221 is 1221001322223.

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

It is a de Polignac number, because none of the positive numbers 2^k-3222231001221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222231001291) 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, 1992760 + ... + 3227313.

It is an arithmetic number, because the mean of its divisors is an integer number (537041213120).

Almost surely, 2^{3222231001221} is an apocalyptic number.

It is an amenable number.

3222231001221 is a deficient number, since it is larger than the sum of its proper divisors (1074098703739).

3222231001221 is a wasteful number, since it uses less digits than its factorization.

3222231001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425835.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 3222231001221 its reverse (1221001322223), we get a palindrome (4443232323444).

The spelling of 3222231001221 in words is "three trillion, two hundred twenty-two billion, two hundred thirty-one million, one thousand, two hundred twenty-one".