120002002101 has 24 divisors (see below), whose sum is σ = 176600380320. Its totient is φ = 78499821600.

The previous prime is 120002002079. The next prime is 120002002111. The reversal of 120002002101 is 101200200021.

It is not a de Polignac number, because 120002002101 - 2¹⁷ = 120001871029 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 (120002002111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78406 + ... + 496136.

It is an arithmetic number, because the mean of its divisors is an integer number (7358349180).

Almost surely, 2^120002002101 is an apocalyptic number.

It is an amenable number.

120002002101 is a deficient number, since it is larger than the sum of its proper divisors (56598378219).

120002002101 is a wasteful number, since it uses less digits than its factorization.

120002002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418337 (or 418334 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 120002002101 its reverse (101200200021), we get a palindrome (221202202122).

The spelling of 120002002101 in words is "one hundred twenty billion, two million, two thousand, one hundred one".