121013201106 has 48 divisors (see below), whose sum is σ = 302618616768. Its totient is φ = 34232868000.

The previous prime is 121013201083. The next prime is 121013201107. The reversal of 121013201106 is 601102310121.

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

It is not an unprimeable number, because it can be changed into a prime (121013201107) 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, 4741840 + ... + 4767291.

It is an arithmetic number, because the mean of its divisors is an integer number (6304554516).

Almost surely, 2^121013201106 is an apocalyptic number.

121013201106 is an abundant number, since it is smaller than the sum of its proper divisors (181605415662).

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

121013201106 is a wasteful number, since it uses less digits than its factorization.

121013201106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9509247 (or 9509244 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121013201106 its reverse (601102310121), we get a palindrome (722115511227).

The spelling of 121013201106 in words is "one hundred twenty-one billion, thirteen million, two hundred one thousand, one hundred six".