2212112121102 has 48 divisors (see below), whose sum is σ = 5386012134048. Its totient is φ = 651056408640.

The previous prime is 2212112121067. The next prime is 2212112121143. The reversal of 2212112121102 is 2011212112122.

2212112121102 is a `hidden beast` number, since 221 + 211 + 21 + 211 + 0 + 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205504849 + ... + 205515612.

It is an arithmetic number, because the mean of its divisors is an integer number (112208586126).

Almost surely, 2^{2212112121102} is an apocalyptic number.

2212112121102 is an abundant number, since it is smaller than the sum of its proper divisors (3173900012946).

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

2212112121102 is a wasteful number, since it uses less digits than its factorization.

2212112121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411020505 (or 411020502 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2212112121102 its reverse (2011212112122), we get a palindrome (4223324233224).

The spelling of 2212112121102 in words is "two trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, one hundred two".