121100201148 has 48 divisors (see below), whose sum is σ = 301836477600. Its totient is φ = 37655998464.

The previous prime is 121100201129. The next prime is 121100201149. The reversal of 121100201148 is 841102001121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100201149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2603623 + ... + 2649726.

It is an arithmetic number, because the mean of its divisors is an integer number (6288259950).

Almost surely, 2^121100201148 is an apocalyptic number.

It is an amenable number.

121100201148 is an abundant number, since it is smaller than the sum of its proper divisors (180736276452).

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

121100201148 is a wasteful number, since it uses less digits than its factorization.

121100201148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253486 (or 5253484 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121100201148 its reverse (841102001121), we get a palindrome (962202202269).

The spelling of 121100201148 in words is "one hundred twenty-one billion, one hundred million, two hundred one thousand, one hundred forty-eight".