212022232431 has 4 divisors (see below), whose sum is σ = 282696309912. Its totient is φ = 141348154952.

The previous prime is 212022232423. The next prime is 212022232451. The reversal of 212022232431 is 134232220212.

212022232431 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.

It is a cyclic number.

It is not a de Polignac number, because 212022232431 - 2³ = 212022232423 is a prime.

It is a super-2 number, since 2×212022232431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022232451) 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, 35337038736 + ... + 35337038741.

It is an arithmetic number, because the mean of its divisors is an integer number (70674077478).

Almost surely, 2^212022232431 is an apocalyptic number.

212022232431 is a deficient number, since it is larger than the sum of its proper divisors (70674077481).

212022232431 is an equidigital number, since it uses as much as digits as its factorization.

212022232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70674077480.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212022232431 its reverse (134232220212), we get a palindrome (346254452643).

The spelling of 212022232431 in words is "two hundred twelve billion, twenty-two million, two hundred thirty-two thousand, four hundred thirty-one".