2021232213 has 72 divisors (see below), whose sum is σ = 3990089376. Its totient is φ = 969192000.

The previous prime is 2021232197. The next prime is 2021232223. The reversal of 2021232213 is 3122321202.

It is not a de Polignac number, because 2021232213 - 2⁴ = 2021232197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021232223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47038 + ... + 79088.

It is an arithmetic number, because the mean of its divisors is an integer number (55417908).

Almost surely, 2^2021232213 is an apocalyptic number.

It is an amenable number.

2021232213 is a deficient number, since it is larger than the sum of its proper divisors (1968857163).

2021232213 is a wasteful number, since it uses less digits than its factorization.

2021232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32095 (or 32085 counting only the distinct ones).

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

The square root of 2021232213 is about 44958.1162083110. The cubic root of 2021232213 is about 1264.3638503904.

Adding to 2021232213 its reverse (3122321202), we get a palindrome (5143553415).

It can be divided in two parts, 20212 and 32213, that added together give a palindrome (52425).

The spelling of 2021232213 in words is "two billion, twenty-one million, two hundred thirty-two thousand, two hundred thirteen".