212322100331 has 4 divisors (see below), whose sum is σ = 231624109464. Its totient is φ = 193020091200.

The previous prime is 212322100283. The next prime is 212322100349. The reversal of 212322100331 is 133001223212.

212322100331 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 212322100331 - 2⁶ = 212322100267 is a prime.

It is a super-2 number, since 2×212322100331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212322100381) 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, 9651004550 + ... + 9651004571.

It is an arithmetic number, because the mean of its divisors is an integer number (57906027366).

Almost surely, 2^212322100331 is an apocalyptic number.

212322100331 is a deficient number, since it is larger than the sum of its proper divisors (19302009133).

212322100331 is a wasteful number, since it uses less digits than its factorization.

212322100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19302009132.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212322100331 its reverse (133001223212), we get a palindrome (345323323543).

The spelling of 212322100331 in words is "two hundred twelve billion, three hundred twenty-two million, one hundred thousand, three hundred thirty-one".