212282811837 has 96 divisors (see below), whose sum is σ = 328503651840. Its totient is φ = 131924643840.

The previous prime is 212282811823. The next prime is 212282811907. The reversal of 212282811837 is 738118282212.

212282811837 is a `hidden beast` number, since 212 + 282 + 81 + 1 + 83 + 7 = 666.

It is not a de Polignac number, because 212282811837 - 2⁷ = 212282811709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212282811792 and 212282811801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212282811137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 128111913 + ... + 128113569.

It is an arithmetic number, because the mean of its divisors is an integer number (3421913040).

Almost surely, 2^212282811837 is an apocalyptic number.

It is an amenable number.

212282811837 is a deficient number, since it is larger than the sum of its proper divisors (116220840003).

212282811837 is a wasteful number, since it uses less digits than its factorization.

212282811837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1920 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The spelling of 212282811837 in words is "two hundred twelve billion, two hundred eighty-two million, eight hundred eleven thousand, eight hundred thirty-seven".