212021310104 has 8 divisors (see below), whose sum is σ = 397539956460. Its totient is φ = 106010655048.

The previous prime is 212021310101. The next prime is 212021310133. The reversal of 212021310104 is 401013120212.

212021310104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021310101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13251331874 + ... + 13251331889.

Almost surely, 2^212021310104 is an apocalyptic number.

It is an amenable number.

212021310104 is a deficient number, since it is larger than the sum of its proper divisors (185518646356).

212021310104 is a wasteful number, since it uses less digits than its factorization.

212021310104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26502663769 (or 26502663765 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212021310104 its reverse (401013120212), we get a palindrome (613034430316).

The spelling of 212021310104 in words is "two hundred twelve billion, twenty-one million, three hundred ten thousand, one hundred four".