2122222101112 has 8 divisors (see below), whose sum is σ = 3979166439600. Its totient is φ = 1061111050552.

The previous prime is 2122222101073. The next prime is 2122222101133. The reversal of 2122222101112 is 2111012222212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2122222101112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132638881312 + ... + 132638881327.

It is an arithmetic number, because the mean of its divisors is an integer number (497395804950).

Almost surely, 2^{2122222101112} is an apocalyptic number.

It is an amenable number.

2122222101112 is a deficient number, since it is larger than the sum of its proper divisors (1856944338488).

2122222101112 is a wasteful number, since it uses less digits than its factorization.

2122222101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265277762645 (or 265277762641 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122222101112 its reverse (2111012222212), we get a palindrome (4233234323324).

The spelling of 2122222101112 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred one thousand, one hundred twelve".