121022121220101 has 24 divisors (see below), whose sum is σ = 174934652765184. Its totient is φ = 80623776008160.

The previous prime is 121022121220067. The next prime is 121022121220141. The reversal of 121022121220101 is 101022121220121.

121022121220101 is a `hidden beast` number, since 1 + 210 + 221 + 2 + 1 + 220 + 10 + 1 = 666.

It is not a de Polignac number, because 121022121220101 - 2⁹ = 121022121219589 is a prime.

It is a super-2 number, since 2×121022121220101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022121220141) 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 23 ways as a sum of consecutive naturals, for example, 79278300 + ... + 80790426.

It is an arithmetic number, because the mean of its divisors is an integer number (7288943865216).

Almost surely, 2^{121022121220101} is an apocalyptic number.

It is an amenable number.

121022121220101 is a deficient number, since it is larger than the sum of its proper divisors (53912531545083).

121022121220101 is a wasteful number, since it uses less digits than its factorization.

121022121220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518481 (or 1518478 counting only the distinct ones).

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

Adding to 121022121220101 its reverse (101022121220121), we get a palindrome (222044242440222).

The spelling of 121022121220101 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, one hundred one".