121022121022101 has 96 divisors (see below), whose sum is σ = 205227604108800. Its totient is φ = 68099648601600.

The previous prime is 121022121022093. The next prime is 121022121022129. The reversal of 121022121022101 is 101220121220121.

121022121022101 is a `hidden beast` number, since 1 + 2 + 10 + 221 + 210 + 221 + 0 + 1 = 666.

It is not a de Polignac number, because 121022121022101 - 2³ = 121022121022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022121022171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 204760 + ... + 15559118.

It is an arithmetic number, because the mean of its divisors is an integer number (2137787542800).

Almost surely, 2^{121022121022101} is an apocalyptic number.

It is an amenable number.

121022121022101 is a deficient number, since it is larger than the sum of its proper divisors (84205483086699).

121022121022101 is a wasteful number, since it uses less digits than its factorization.

121022121022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354531 (or 15354528 counting only the distinct ones).

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

Adding to 121022121022101 its reverse (101220121220121), we get a palindrome (222242242242222).

The spelling of 121022121022101 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, twenty-two thousand, one hundred one".