2012100222222 has 24 divisors (see below), whose sum is σ = 4452306876576. Its totient is φ = 656429859456.

The previous prime is 2012100222203. The next prime is 2012100222227. The reversal of 2012100222222 is 2222220012102.

2012100222222 is a `hidden beast` number, since 201 + 21 + 0 + 0 + 222 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012100222195 and 2012100222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012100222227) 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, 1189183683 + ... + 1189185374.

It is an arithmetic number, because the mean of its divisors is an integer number (185512786524).

Almost surely, 2^{2012100222222} is an apocalyptic number.

2012100222222 is an abundant number, since it is smaller than the sum of its proper divisors (2440206654354).

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

2012100222222 is a wasteful number, since it uses less digits than its factorization.

2012100222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378369112 (or 2378369109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2012100222222 its reverse (2222220012102), we get a palindrome (4234320234324).

It can be divided in two parts, 2012100 and 222222, that added together give a palindrome (2234322).

The spelling of 2012100222222 in words is "two trillion, twelve billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".