212021120104 has 8 divisors (see below), whose sum is σ = 397539600210. Its totient is φ = 106010560048.

The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120104 is 401021120212.

212021120104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 169745648004 + 42275472100 = 412002^2 + 205610^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13251319999 + ... + 13251320014.

Almost surely, 2^212021120104 is an apocalyptic number.

It is an amenable number.

212021120104 is a deficient number, since it is larger than the sum of its proper divisors (185518480106).

212021120104 is a wasteful number, since it uses less digits than its factorization.

212021120104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26502640019 (or 26502640015 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212021120104 its reverse (401021120212), we get a palindrome (613042240316).

The spelling of 212021120104 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, one hundred four".