211321222132 has 12 divisors (see below), whose sum is σ = 369816275556. Its totient is φ = 105659429120.

The previous prime is 211321222121. The next prime is 211321222157. The reversal of 211321222132 is 231222123112.

It can be written as a sum of positive squares in 2 ways, for example, as 76195873296 + 135125348836 = 276036^2 + 367594^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198582 + ... + 679762.

It is an arithmetic number, because the mean of its divisors is an integer number (30818022963).

Almost surely, 2^211321222132 is an apocalyptic number.

It is an amenable number.

211321222132 is a deficient number, since it is larger than the sum of its proper divisors (158495053424).

211321222132 is a wasteful number, since it uses less digits than its factorization.

211321222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590978 (or 590976 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 211321222132 its reverse (231222123112), we get a palindrome (442543345244).

The spelling of 211321222132 in words is "two hundred eleven billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-two".