3222312021 has 12 divisors (see below), whose sum is σ = 4654947180. Its totient is φ = 2147978880.

The previous prime is 3222311987. The next prime is 3222312043. The reversal of 3222312021 is 1202132223.

It can be written as a sum of positive squares in 2 ways, for example, as 2060252100 + 1162059921 = 45390^2 + 34089^2 .

It is not a de Polignac number, because 3222312021 - 2¹⁸ = 3222049877 is a prime.

It is a super-2 number, since 2×3222312021² = 20766589521362208882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3222311985 and 3222312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222312521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137931 + ... + 159591.

It is an arithmetic number, because the mean of its divisors is an integer number (387912265).

Almost surely, 2^3222312021 is an apocalyptic number.

It is an amenable number.

3222312021 is a deficient number, since it is larger than the sum of its proper divisors (1432635159).

3222312021 is a wasteful number, since it uses less digits than its factorization.

3222312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38196 (or 38193 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3222312021 is about 56765.4121891139. The cubic root of 3222312021 is about 1477.0295945518.

Adding to 3222312021 its reverse (1202132223), we get a palindrome (4424444244).

It can be divided in two parts, 32223 and 12021, that added together give a palindrome (44244).

The spelling of 3222312021 in words is "three billion, two hundred twenty-two million, three hundred twelve thousand, twenty-one".