212132221311 has 32 divisors (see below), whose sum is σ = 304747204608. Its totient is φ = 130872107520.

The previous prime is 212132221237. The next prime is 212132221321. The reversal of 212132221311 is 113122231212.

It is not a de Polignac number, because 212132221311 - 2¹³ = 212132213119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132221321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8879895 + ... + 8903751.

It is an arithmetic number, because the mean of its divisors is an integer number (9523350144).

Almost surely, 2^212132221311 is an apocalyptic number.

212132221311 is a deficient number, since it is larger than the sum of its proper divisors (92614983297).

212132221311 is a wasteful number, since it uses less digits than its factorization.

212132221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28071.

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

Adding to 212132221311 its reverse (113122231212), we get a palindrome (325254452523).

Subtracting from 212132221311 its reverse (113122231212), we obtain a palindrome (99009990099).

The spelling of 212132221311 in words is "two hundred twelve billion, one hundred thirty-two million, two hundred twenty-one thousand, three hundred eleven".