212001133213 has 4 divisors (see below), whose sum is σ = 212060305408. Its totient is φ = 211941961020.

The previous prime is 212001133171. The next prime is 212001133231. The reversal of 212001133213 is 312331100212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212001133213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001133613) 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, 29580723 + ... + 29587888.

It is an arithmetic number, because the mean of its divisors is an integer number (53015076352).

Almost surely, 2^212001133213 is an apocalyptic number.

It is an amenable number.

212001133213 is a deficient number, since it is larger than the sum of its proper divisors (59172195).

212001133213 is an equidigital number, since it uses as much as digits as its factorization.

212001133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59172194.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212001133213 its reverse (312331100212), we get a palindrome (524332233425).

The spelling of 212001133213 in words is "two hundred twelve billion, one million, one hundred thirty-three thousand, two hundred thirteen".