212212104102 has 24 divisors (see below), whose sum is σ = 460055249784. Its totient is φ = 70697005344.

The previous prime is 212212104067. The next prime is 212212104103. The reversal of 212212104102 is 201401212212.

212212104102 is a `hidden beast` number, since 21 + 2 + 21 + 210 + 410 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212104103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3331128 + ... + 3394235.

It is an arithmetic number, because the mean of its divisors is an integer number (19168968741).

Almost surely, 2^212212104102 is an apocalyptic number.

212212104102 is an abundant number, since it is smaller than the sum of its proper divisors (247843145682).

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

212212104102 is a wasteful number, since it uses less digits than its factorization.

212212104102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6727124 (or 6727121 counting only the distinct ones).

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

Adding to 212212104102 its reverse (201401212212), we get a palindrome (413613316314).

The spelling of 212212104102 in words is "two hundred twelve billion, two hundred twelve million, one hundred four thousand, one hundred two".