212333022331 has 4 divisors (see below), whose sum is σ = 212591650464. Its totient is φ = 212074394200.

The previous prime is 212333022301. The next prime is 212333022371. The reversal of 212333022331 is 133220333212.

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 212333022331 - 2¹¹ = 212333020283 is a prime.

It is a super-2 number, since 2×212333022331² (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 = 212333022296 and 212333022305.

It is not an unprimeable number, because it can be changed into a prime (212333022301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129312835 + ... + 129314476.

It is an arithmetic number, because the mean of its divisors is an integer number (53147912616).

Almost surely, 2^212333022331 is an apocalyptic number.

212333022331 is a deficient number, since it is larger than the sum of its proper divisors (258628133).

212333022331 is an equidigital number, since it uses as much as digits as its factorization.

212333022331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258628132.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 212333022331 its reverse (133220333212), we get a palindrome (345553355543).

The spelling of 212333022331 in words is "two hundred twelve billion, three hundred thirty-three million, twenty-two thousand, three hundred thirty-one".