20212213111311 has 16 divisors (see below), whose sum is σ = 30550173664640. Its totient is φ = 11783638412640.

The previous prime is 20212213111291. The next prime is 20212213111331. The reversal of 20212213111311 is 11311131221202.

It is an interprime number because it is at equal distance from previous prime (20212213111291) and next prime (20212213111331).

It is not a de Polignac number, because 20212213111311 - 2¹⁹ = 20212212587023 is a prime.

It is a super-2 number, since 2×20212213111311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212213111331) 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, 13638469645 + ... + 13638471126.

It is an arithmetic number, because the mean of its divisors is an integer number (1909385854040).

Almost surely, 2^{20212213111311} is an apocalyptic number.

20212213111311 is a deficient number, since it is larger than the sum of its proper divisors (10337960553329).

20212213111311 is a wasteful number, since it uses less digits than its factorization.

20212213111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27276940806.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 20212213111311 its reverse (11311131221202), we get a palindrome (31523344332513).

The spelling of 20212213111311 in words is "twenty trillion, two hundred twelve billion, two hundred thirteen million, one hundred eleven thousand, three hundred eleven".