120001002101 has 16 divisors (see below), whose sum is σ = 122412540096. Its totient is φ = 117618448896.

The previous prime is 120001002091. The next prime is 120001002113. The reversal of 120001002101 is 101200100021.

It is a cyclic number.

It is not a de Polignac number, because 120001002101 - 2²⁶ = 119933893237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001002131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4662470 + ... + 4688136.

It is an arithmetic number, because the mean of its divisors is an integer number (7650783756).

Almost surely, 2^120001002101 is an apocalyptic number.

It is an amenable number.

120001002101 is a deficient number, since it is larger than the sum of its proper divisors (2411537995).

120001002101 is a wasteful number, since it uses less digits than its factorization.

120001002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26228.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120001002101 its reverse (101200100021), we get a palindrome (221201102122).

It can be divided in two parts, 12000 and 1002101, that added together give a palindrome (1014101).

The spelling of 120001002101 in words is "one hundred twenty billion, one million, two thousand, one hundred one".