2121132121122 has 32 divisors (see below), whose sum is σ = 4875387494400. Its totient is φ = 602652061008.

The previous prime is 2121132121051. The next prime is 2121132121139. The reversal of 2121132121122 is 2211212311212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

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 in 15 ways as a sum of consecutive naturals, for example, 141062722 + ... + 141077757.

It is an arithmetic number, because the mean of its divisors is an integer number (152355859200).

Almost surely, 2^{2121132121122} is an apocalyptic number.

2121132121122 is an abundant number, since it is smaller than the sum of its proper divisors (2754255373278).

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

2121132121122 is a wasteful number, since it uses less digits than its factorization.

2121132121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282140670.

The product of its digits is 192, while the sum is 21.

Adding to 2121132121122 its reverse (2211212311212), we get a palindrome (4332344432334).

The spelling of 2121132121122 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, one hundred twenty-two".