212020224231 has 4 divisors (see below), whose sum is σ = 282693632312. Its totient is φ = 141346816152.

The previous prime is 212020224223. The next prime is 212020224259. The reversal of 212020224231 is 132422020212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212020224231 - 2³ = 212020224223 is a prime.

It is a super-2 number, since 2×212020224231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020224198 and 212020224207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020224281) 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, 35336704036 + ... + 35336704041.

It is an arithmetic number, because the mean of its divisors is an integer number (70673408078).

Almost surely, 2^212020224231 is an apocalyptic number.

212020224231 is a deficient number, since it is larger than the sum of its proper divisors (70673408081).

212020224231 is an equidigital number, since it uses as much as digits as its factorization.

212020224231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70673408080.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212020224231 its reverse (132422020212), we get a palindrome (344442244443).

The spelling of 212020224231 in words is "two hundred twelve billion, twenty million, two hundred twenty-four thousand, two hundred thirty-one".