212110131 has 4 divisors (see below), whose sum is σ = 282813512. Its totient is φ = 141406752.

The previous prime is 212110127. The next prime is 212110183. The reversal of 212110131 is 131011212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212110131 - 2² = 212110127 is a prime.

It is a super-2 number, since 2×212110131² = 89981415345674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35351686 + ... + 35351691.

It is an arithmetic number, because the mean of its divisors is an integer number (70703378).

Almost surely, 2^212110131 is an apocalyptic number.

212110131 is a deficient number, since it is larger than the sum of its proper divisors (70703381).

212110131 is an equidigital number, since it uses as much as digits as its factorization.

212110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703380.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 212110131 is about 14564.0012015929. The cubic root of 212110131 is about 596.3764297294.

Adding to 212110131 its reverse (131011212), we get a palindrome (343121343).

The spelling of 212110131 in words is "two hundred twelve million, one hundred ten thousand, one hundred thirty-one".