2101202121122 has 16 divisors (see below), whose sum is σ = 3404504124672. Its totient is φ = 966855724560.

The previous prime is 2101202121047. The next prime is 2101202121127. The reversal of 2101202121122 is 2211212021012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101202121122.

It is not an unprimeable number, because it can be changed into a prime (2101202121127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 122069138 + ... + 122086349.

It is an arithmetic number, because the mean of its divisors is an integer number (212781507792).

Almost surely, 2^{2101202121122} is an apocalyptic number.

2101202121122 is a deficient number, since it is larger than the sum of its proper divisors (1303302003550).

2101202121122 is a wasteful number, since it uses less digits than its factorization.

2101202121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244155833.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2101202121122 its reverse (2211212021012), we get a palindrome (4312414142134).

The spelling of 2101202121122 in words is "two trillion, one hundred one billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-two".