212120002112102 has 64 divisors (see below), whose sum is σ = 368942994161664. Its totient is φ = 89590034046240.

The previous prime is 212120002112093. The next prime is 212120002112107. The reversal of 212120002112102 is 201211200021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120002112107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3499895483 + ... + 3499956089.

It is an arithmetic number, because the mean of its divisors is an integer number (5764734283776).

Almost surely, 2^{212120002112102} is an apocalyptic number.

212120002112102 is a deficient number, since it is larger than the sum of its proper divisors (156822992049562).

212120002112102 is a wasteful number, since it uses less digits than its factorization.

212120002112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72433.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120002112102 its reverse (201211200021212), we get a palindrome (413331202133314).

The spelling of 212120002112102 in words is "two hundred twelve trillion, one hundred twenty billion, two million, one hundred twelve thousand, one hundred two".