212331622546 has 16 divisors (see below), whose sum is σ = 321230210976. Its totient is φ = 105256856736.

The previous prime is 212331622457. The next prime is 212331622619. The reversal of 212331622546 is 645226133212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276696 + ... + 707971.

It is an arithmetic number, because the mean of its divisors is an integer number (20076888186).

Almost surely, 2^212331622546 is an apocalyptic number.

212331622546 is a deficient number, since it is larger than the sum of its proper divisors (108898588430).

212331622546 is a wasteful number, since it uses less digits than its factorization.

212331622546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985593.

The product of its digits is 103680, while the sum is 37.

Adding to 212331622546 its reverse (645226133212), we get a palindrome (857557755758).

The spelling of 212331622546 in words is "two hundred twelve billion, three hundred thirty-one million, six hundred twenty-two thousand, five hundred forty-six".