211221231132 has 48 divisors (see below), whose sum is σ = 495517121792. Its totient is φ = 70026163200.

The previous prime is 211221231071. The next prime is 211221231259. The reversal of 211221231132 is 231132122112.

It is a super-2 number, since 2×211221231132² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 211221231099 and 211221231108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14238303 + ... + 14253129.

Almost surely, 2^211221231132 is an apocalyptic number.

It is an amenable number.

211221231132 is an abundant number, since it is smaller than the sum of its proper divisors (284295890660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211221231132 is a wasteful number, since it uses less digits than its factorization.

211221231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21178 (or 21176 counting only the distinct ones).

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

Adding to 211221231132 its reverse (231132122112), we get a palindrome (442353353244).

The spelling of 211221231132 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-two".