2021022231213 has 16 divisors (see below), whose sum is σ = 2783363979776. Its totient is φ = 1303068755520.

The previous prime is 2021022231199. The next prime is 2021022231259. The reversal of 2021022231213 is 3121322201202.

It is not a de Polignac number, because 2021022231213 - 2¹³ = 2021022223021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021022231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021022236213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6655306 + ... + 6952347.

It is an arithmetic number, because the mean of its divisors is an integer number (173960248736).

Almost surely, 2^{2021022231213} is an apocalyptic number.

It is an amenable number.

2021022231213 is a deficient number, since it is larger than the sum of its proper divisors (762341748563).

2021022231213 is a wasteful number, since it uses less digits than its factorization.

2021022231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13609284.

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

Adding to 2021022231213 its reverse (3121322201202), we get a palindrome (5142344432415).

The spelling of 2021022231213 in words is "two trillion, twenty-one billion, twenty-two million, two hundred thirty-one thousand, two hundred thirteen".