212022031311 has 12 divisors (see below), whose sum is σ = 306258039360. Its totient is φ = 141346177440.

The previous prime is 212022031261. The next prime is 212022031321. The reversal of 212022031311 is 113130220212.

212022031311 is a `hidden beast` number, since 2 + 120 + 220 + 313 + 11 = 666.

It is not a de Polignac number, because 212022031311 - 2¹⁵ = 212021998543 is a prime.

It is a super-2 number, since 2×212022031311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022031321) 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, 1244866 + ... + 1404896.

It is an arithmetic number, because the mean of its divisors is an integer number (25521503280).

Almost surely, 2^212022031311 is an apocalyptic number.

212022031311 is a deficient number, since it is larger than the sum of its proper divisors (94236008049).

212022031311 is a wasteful number, since it uses less digits than its factorization.

212022031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307246 (or 307243 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212022031311 its reverse (113130220212), we get a palindrome (325152251523).

The spelling of 212022031311 in words is "two hundred twelve billion, twenty-two million, thirty-one thousand, three hundred eleven".