212322211311 has 16 divisors (see below), whose sum is σ = 323766017024. Its totient is φ = 121241699424.

The previous prime is 212322211307. The next prime is 212322211319. The reversal of 212322211311 is 113112223212.

It is not a de Polignac number, because 212322211311 - 2² = 212322211307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212322211319) 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, 3522676 + ... + 3582441.

It is an arithmetic number, because the mean of its divisors is an integer number (20235376064).

Almost surely, 2^212322211311 is an apocalyptic number.

212322211311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212322211311 is a deficient number, since it is larger than the sum of its proper divisors (111443805713).

212322211311 is a wasteful number, since it uses less digits than its factorization.

212322211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106550.

The product of its digits is 288, while the sum is 21.

Adding to 212322211311 its reverse (113112223212), we get a palindrome (325434434523).

The spelling of 212322211311 in words is "two hundred twelve billion, three hundred twenty-two million, two hundred eleven thousand, three hundred eleven".