212213131133 has 4 divisors (see below), whose sum is σ = 219530825340. Its totient is φ = 204895436928.

The previous prime is 212213131111. The next prime is 212213131157. The reversal of 212213131133 is 331131312212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104663896324 + 107549234809 = 323518^2 + 327947^2 .

It is a cyclic number.

It is not a de Polignac number, because 212213131133 - 2³² = 207918163837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212213131099 and 212213131108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213131433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3658847060 + ... + 3658847117.

It is an arithmetic number, because the mean of its divisors is an integer number (54882706335).

Almost surely, 2^212213131133 is an apocalyptic number.

It is an amenable number.

212213131133 is a deficient number, since it is larger than the sum of its proper divisors (7317694207).

212213131133 is an equidigital number, since it uses as much as digits as its factorization.

212213131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317694206.

The product of its digits is 648, while the sum is 23.

Adding to 212213131133 its reverse (331131312212), we get a palindrome (543344443345).

The spelling of 212213131133 in words is "two hundred twelve billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred thirty-three".