212233021310020 has 48 divisors (see below), whose sum is σ = 446043642211440. Its totient is φ = 84825737540096.

The previous prime is 212233021309999. The next prime is 212233021310021. The reversal of 212233021310020 is 20013120332212.

It can be written as a sum of positive squares in 8 ways, for example, as 32361148406596 + 179871872903424 = 5688686^2 + 13411632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212233021309973 and 212233021310000.

It is not an unprimeable number, because it can be changed into a prime (212233021310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240499914 + ... + 241380766.

It is an arithmetic number, because the mean of its divisors is an integer number (9292575879405).

Almost surely, 2^{212233021310020} is an apocalyptic number.

212233021310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212233021310020 is an abundant number, since it is smaller than the sum of its proper divisors (233810620901420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212233021310020 is a wasteful number, since it uses less digits than its factorization.

212233021310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890424 (or 890422 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212233021310020 its reverse (20013120332212), we get a palindrome (232246141642232).

The spelling of 212233021310020 in words is "two hundred twelve trillion, two hundred thirty-three billion, twenty-one million, three hundred ten thousand, twenty".