212021013033 has 6 divisors (see below), whose sum is σ = 306252574394. Its totient is φ = 141347342016.

The previous prime is 212021012911. The next prime is 212021013059. The reversal of 212021013033 is 330310120212.

It can be written as a sum of positive squares in only one way, i.e., 211588040169 + 432972864 = 459987^2 + 20808^2 .

It is not a de Polignac number, because 212021013033 - 2¹² = 212021008937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021012997 and 212021013015.

It is not an unprimeable number, because it can be changed into a prime (212021013073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11778945160 + ... + 11778945177.

Almost surely, 2^212021013033 is an apocalyptic number.

It is an amenable number.

212021013033 is a deficient number, since it is larger than the sum of its proper divisors (94231561361).

212021013033 is a wasteful number, since it uses less digits than its factorization.

212021013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23557890343 (or 23557890340 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212021013033 its reverse (330310120212), we get a palindrome (542331133245).

The spelling of 212021013033 in words is "two hundred twelve billion, twenty-one million, thirteen thousand, thirty-three".