212120012122102 has 32 divisors (see below), whose sum is σ = 365815241100288. Its totient is φ = 90363353342496.

The previous prime is 212120012122097. The next prime is 212120012122129. The reversal of 212120012122102 is 201221210021212.

It is a self number, because there is not a number n which added to its sum of digits gives 212120012122102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285629688 + ... + 286371364.

It is an arithmetic number, because the mean of its divisors is an integer number (11431726284384).

Almost surely, 2^{212120012122102} is an apocalyptic number.

212120012122102 is a deficient number, since it is larger than the sum of its proper divisors (153695228978186).

212120012122102 is a wasteful number, since it uses less digits than its factorization.

212120012122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864180.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212120012122102 its reverse (201221210021212), we get a palindrome (413341222143314).

The spelling of 212120012122102 in words is "two hundred twelve trillion, one hundred twenty billion, twelve million, one hundred twenty-two thousand, one hundred two".