120011020101 has 96 divisors (see below), whose sum is σ = 210973168640. Its totient is φ = 64215078912.

The previous prime is 120011020081. The next prime is 120011020109. The reversal of 120011020101 is 101020110021.

It is a happy number.

It is not a de Polignac number, because 120011020101 - 2⁹ = 120011019589 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011020109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37654830 + ... + 37658016.

Almost surely, 2^120011020101 is an apocalyptic number.

It is an amenable number.

120011020101 is a deficient number, since it is larger than the sum of its proper divisors (90962148539).

120011020101 is a wasteful number, since it uses less digits than its factorization.

120011020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3572 counting only the distinct ones).

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

Adding to 120011020101 its reverse (101020110021), we get a palindrome (221031130122).

The spelling of 120011020101 in words is "one hundred twenty billion, eleven million, twenty thousand, one hundred one".