212130104533 has 4 divisors (see below), whose sum is σ = 212202285120. Its totient is φ = 212057923948.

The previous prime is 212130104471. The next prime is 212130104561. The reversal of 212130104533 is 335401031212.

It is a happy number.

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-212130104533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212130104498 and 212130104507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130104933) 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, 36085885 + ... + 36091762.

It is an arithmetic number, because the mean of its divisors is an integer number (53050571280).

Almost surely, 2^212130104533 is an apocalyptic number.

It is an amenable number.

212130104533 is a deficient number, since it is larger than the sum of its proper divisors (72180587).

212130104533 is an equidigital number, since it uses as much as digits as its factorization.

212130104533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72180586.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 212130104533 its reverse (335401031212), we get a palindrome (547531135745).

The spelling of 212130104533 in words is "two hundred twelve billion, one hundred thirty million, one hundred four thousand, five hundred thirty-three".