212330330331 has 16 divisors (see below), whose sum is σ = 323591998464. Its totient is φ = 121316235264.

The previous prime is 212330330323. The next prime is 212330330351. The reversal of 212330330331 is 133033033212.

It is not a de Polignac number, because 212330330331 - 2³ = 212330330323 is a prime.

It is a super-2 number, since 2×212330330331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212330330351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470275 + ... + 803628.

It is an arithmetic number, because the mean of its divisors is an integer number (20224499904).

Almost surely, 2^212330330331 is an apocalyptic number.

212330330331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212330330331 is a deficient number, since it is larger than the sum of its proper divisors (111261668133).

212330330331 is a wasteful number, since it uses less digits than its factorization.

212330330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281850.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 212330330331 its reverse (133033033212), we get a palindrome (345363363543).

The spelling of 212330330331 in words is "two hundred twelve billion, three hundred thirty million, three hundred thirty thousand, three hundred thirty-one".