120000121101 has 48 divisors (see below), whose sum is σ = 209789169408. Its totient is φ = 64525248000.

The previous prime is 120000121099. The next prime is 120000121117. The reversal of 120000121101 is 101121000021.

It is a happy number.

It is not a de Polignac number, because 120000121101 - 2¹ = 120000121099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000121151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8669256 + ... + 8683086.

It is an arithmetic number, because the mean of its divisors is an integer number (4370607696).

Almost surely, 2^120000121101 is an apocalyptic number.

It is an amenable number.

120000121101 is a deficient number, since it is larger than the sum of its proper divisors (89789048307).

120000121101 is a wasteful number, since it uses less digits than its factorization.

120000121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21962 (or 21959 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120000121101 its reverse (101121000021), we get a palindrome (221121121122).

The spelling of 120000121101 in words is "one hundred twenty billion, one hundred twenty-one thousand, one hundred one".