2112121022204 has 24 divisors (see below), whose sum is σ = 3711728265168. Its totient is φ = 1051627656960.

The previous prime is 2112121022201. The next prime is 2112121022287. The reversal of 2112121022204 is 4022201212112.

It is a happy number.

It is a super-2 number, since 2×2112121022204² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112121022201) 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, 27110234 + ... + 27188030.

It is an arithmetic number, because the mean of its divisors is an integer number (154655344382).

Almost surely, 2^{2112121022204} is an apocalyptic number.

It is an amenable number.

2112121022204 is a deficient number, since it is larger than the sum of its proper divisors (1599607242964).

2112121022204 is a wasteful number, since it uses less digits than its factorization.

2112121022204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106205 (or 106203 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2112121022204 its reverse (4022201212112), we get a palindrome (6134322234316).

The spelling of 2112121022204 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, twenty-two thousand, two hundred four".