212331020220232 has 16 divisors (see below), whose sum is σ = 398120854823100. Its totient is φ = 106165458934080.

The previous prime is 212331020220227. The next prime is 212331020220299. The reversal of 212331020220232 is 232022020133212.

It can be written as a sum of positive squares in 2 ways, for example, as 155560612091236 + 56770408128996 = 12472394^2 + 7534614^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212331020220197 and 212331020220206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15744382 + ... + 25933522.

Almost surely, 2^{212331020220232} is an apocalyptic number.

It is an amenable number.

212331020220232 is a deficient number, since it is larger than the sum of its proper divisors (185789834602868).

212331020220232 is a wasteful number, since it uses less digits than its factorization.

212331020220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12794016 (or 12794012 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212331020220232 its reverse (232022020133212), we get a palindrome (444353040353444).

The spelling of 212331020220232 in words is "two hundred twelve trillion, three hundred thirty-one billion, twenty million, two hundred twenty thousand, two hundred thirty-two".