212131110333 has 32 divisors (see below), whose sum is σ = 297851548672. Its totient is φ = 134123558400.

The previous prime is 212131110293. The next prime is 212131110337. The reversal of 212131110333 is 333011131212.

It is a happy number.

It is not a de Polignac number, because 212131110333 - 2²⁰ = 212130061757 is a prime.

It is a super-2 number, since 2×212131110333² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212131110337) 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, 966363 + ... + 1165383.

It is an arithmetic number, because the mean of its divisors is an integer number (9307860896).

Almost surely, 2^212131110333 is an apocalyptic number.

It is an amenable number.

212131110333 is a deficient number, since it is larger than the sum of its proper divisors (85720438339).

212131110333 is a wasteful number, since it uses less digits than its factorization.

212131110333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199285.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 212131110333 its reverse (333011131212), we get a palindrome (545142241545).

The spelling of 212131110333 in words is "two hundred twelve billion, one hundred thirty-one million, one hundred ten thousand, three hundred thirty-three".