3222531421 has 4 divisors (see below), whose sum is σ = 3240335644. Its totient is φ = 3204727200.

The previous prime is 3222531419. The next prime is 3222531469. The reversal of 3222531421 is 1241352223.

3222531421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1241352223 = 17 ⋅73020719.

It can be written as a sum of positive squares in 2 ways, for example, as 770895225 + 2451636196 = 27765^2 + 49514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3222531421 - 2¹ = 3222531419 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 (3222531821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8901840 + ... + 8902201.

It is an arithmetic number, because the mean of its divisors is an integer number (810083911).

Almost surely, 2^3222531421 is an apocalyptic number.

It is an amenable number.

3222531421 is a deficient number, since it is larger than the sum of its proper divisors (17804223).

3222531421 is a wasteful number, since it uses less digits than its factorization.

3222531421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17804222.

The product of its digits is 2880, while the sum is 25.

The square root of 3222531421 is about 56767.3446710342. The cubic root of 3222531421 is about 1477.0631163354.

Adding to 3222531421 its reverse (1241352223), we get a palindrome (4463883644).

The spelling of 3222531421 in words is "three billion, two hundred twenty-two million, five hundred thirty-one thousand, four hundred twenty-one".