212133013109 has 4 divisors (see below), whose sum is σ = 221356187616. Its totient is φ = 202909838604.

The previous prime is 212133013033. The next prime is 212133013153. The reversal of 212133013109 is 901310331212.

212133013109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 212133013109 - 2⁸ = 212133012853 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 (212133013709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611587219 + ... + 4611587264.

It is an arithmetic number, because the mean of its divisors is an integer number (55339046904).

Almost surely, 2^212133013109 is an apocalyptic number.

It is an amenable number.

212133013109 is a deficient number, since it is larger than the sum of its proper divisors (9223174507).

212133013109 is an equidigital number, since it uses as much as digits as its factorization.

212133013109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223174506.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 212133013109 in words is "two hundred twelve billion, one hundred thirty-three million, thirteen thousand, one hundred nine".