212120104635 has 48 divisors (see below), whose sum is σ = 383714929728. Its totient is φ = 108196704000.

The previous prime is 212120104619. The next prime is 212120104667. The reversal of 212120104635 is 536401021212.

212120104635 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 20 + 1 + 0 + 4 + 635 = 666.

It is not a de Polignac number, because 212120104635 - 2⁴ = 212120104619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212120104599 and 212120104608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12723205 + ... + 12739865.

It is an arithmetic number, because the mean of its divisors is an integer number (7994061036).

Almost surely, 2^212120104635 is an apocalyptic number.

212120104635 is a deficient number, since it is larger than the sum of its proper divisors (171594825093).

212120104635 is a wasteful number, since it uses less digits than its factorization.

212120104635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28996 (or 28993 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 212120104635 its reverse (536401021212), we get a palindrome (748521125847).

The spelling of 212120104635 in words is "two hundred twelve billion, one hundred twenty million, one hundred four thousand, six hundred thirty-five".