121020122020122 has 128 divisors (see below), whose sum is σ = 307014342163200. Its totient is φ = 35005748963328.

The previous prime is 121020122020117. The next prime is 121020122020141. The reversal of 121020122020122 is 221020221020121.

It is a happy number.

121020122020122 is a `hidden beast` number, since 1 + 21 + 0 + 201 + 220 + 201 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121020122020095 and 121020122020104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4348638 + ... + 16153974.

It is an arithmetic number, because the mean of its divisors is an integer number (2398549548150).

Almost surely, 2^{121020122020122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121020122020122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153507171081600).

121020122020122 is an abundant number, since it is smaller than the sum of its proper divisors (185994220143078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121020122020122 is a wasteful number, since it uses less digits than its factorization.

121020122020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11806237 (or 11806231 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121020122020122 its reverse (221020221020121), we get a palindrome (342040343040243).

The spelling of 121020122020122 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty-two million, twenty thousand, one hundred twenty-two".