212120212200102 has 12 divisors (see below), whose sum is σ = 459593793100260. Its totient is φ = 70706737400028.

The previous prime is 212120212200101. The next prime is 212120212200109. The reversal of 212120212200102 is 201002212021212.

It is a happy number.

212120212200102 is a `hidden beast` number, since 212 + 120 + 212 + 20 + 0 + 102 = 666.

212120212200102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11784456233339 = 212120212200102 / (2 + 1 + 2 + 1 + 2 + 0 + 2 + 1 + 2 + 2 + 0 + 0 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120212200101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5892228116652 + ... + 5892228116687.

It is an arithmetic number, because the mean of its divisors is an integer number (38299482758355).

Almost surely, 2^{212120212200102} is an apocalyptic number.

212120212200102 is an abundant number, since it is smaller than the sum of its proper divisors (247473580900158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212120212200102 is a wasteful number, since it uses less digits than its factorization.

212120212200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784456233347 (or 11784456233344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212120212200102 its reverse (201002212021212), we get a palindrome (413122424221314).

The spelling of 212120212200102 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred twelve million, two hundred thousand, one hundred two".