2102112222102 has 20 divisors (see below), whose sum is σ = 4710288498036. Its totient is φ = 700704073980.

The previous prime is 2102112222059. The next prime is 2102112222109. The reversal of 2102112222102 is 2012222112012.

It is a happy number.

2102112222102 is a `hidden beast` number, since 21 + 0 + 211 + 222 + 210 + 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 (2102112222109) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6488000524 + ... + 6488000847.

Almost surely, 2^{2102112222102} is an apocalyptic number.

2102112222102 is an abundant number, since it is smaller than the sum of its proper divisors (2608176275934).

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

2102112222102 is a wasteful number, since it uses less digits than its factorization.

2102112222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976001385 (or 12976001376 counting only the distinct ones).

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

Adding to 2102112222102 its reverse (2012222112012), we get a palindrome (4114334334114).

The spelling of 2102112222102 in words is "two trillion, one hundred two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred two".