100122121220211 has 12 divisors (see below), whose sum is σ = 145724817655560. Its totient is φ = 66238553478240.

The previous prime is 100122121220197. The next prime is 100122121220287. The reversal of 100122121220211 is 112022121221001.

100122121220211 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 221 + 212 + 20 + 211 = 666.

It is not a de Polignac number, because 100122121220211 - 2²⁶ = 100122054111347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100122121220111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42460610026 + ... + 42460612383.

It is an arithmetic number, because the mean of its divisors is an integer number (12143734804630).

Almost surely, 2^{100122121220211} is an apocalyptic number.

100122121220211 is a deficient number, since it is larger than the sum of its proper divisors (45602696435349).

100122121220211 is a wasteful number, since it uses less digits than its factorization.

100122121220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84921222546 (or 84921222543 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 100122121220211 its reverse (112022121221001), we get a palindrome (212144242441212).

The spelling of 100122121220211 in words is "one hundred trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred eleven".