212224100331 has 16 divisors (see below), whose sum is σ = 298312326144. Its totient is φ = 133936137984.

The previous prime is 212224100237. The next prime is 212224100359. The reversal of 212224100331 is 133001422212.

It is not a de Polignac number, because 212224100331 - 2⁷ = 212224100203 is a prime.

It is a super-2 number, since 2×212224100331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212224100298 and 212224100307.

It is not an unprimeable number, because it can be changed into a prime (212224100381) 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, 15847491 + ... + 15860876.

It is an arithmetic number, because the mean of its divisors is an integer number (18644520384).

Almost surely, 2^212224100331 is an apocalyptic number.

212224100331 is a deficient number, since it is larger than the sum of its proper divisors (86088225813).

212224100331 is a wasteful number, since it uses less digits than its factorization.

212224100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31708490.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212224100331 its reverse (133001422212), we get a palindrome (345225522543).

The spelling of 212224100331 in words is "two hundred twelve billion, two hundred twenty-four million, one hundred thousand, three hundred thirty-one".