2122122121192 has 8 divisors (see below), whose sum is σ = 3978978977250. Its totient is φ = 1061061060592.

The previous prime is 2122122121181. The next prime is 2122122121271. The reversal of 2122122121192 is 2911212212212.

It can be written as a sum of positive squares in only one way, i.e., 2121957409636 + 164711556 = 1456694^2 + 12834^2 .

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 2122122121192.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132632632567 + ... + 132632632582.

Almost surely, 2^{2122122121192} is an apocalyptic number.

It is an amenable number.

2122122121192 is a deficient number, since it is larger than the sum of its proper divisors (1856856856058).

2122122121192 is a wasteful number, since it uses less digits than its factorization.

2122122121192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265265265155 (or 265265265151 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The spelling of 2122122121192 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred ninety-two".