120100120101 has 48 divisors (see below), whose sum is σ = 187499370240. Its totient is φ = 73640465280.

The previous prime is 120100120097. The next prime is 120100120111. The reversal of 120100120101 is 101021001021.

It is a happy number.

It is not a de Polignac number, because 120100120101 - 2² = 120100120097 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 (120100120111) 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, 71958495 + ... + 71960163.

It is an arithmetic number, because the mean of its divisors is an integer number (3906236880).

Almost surely, 2^120100120101 is an apocalyptic number.

It is an amenable number.

120100120101 is a deficient number, since it is larger than the sum of its proper divisors (67399250139).

120100120101 is a wasteful number, since it uses less digits than its factorization.

120100120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3543 counting only the distinct ones).

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

Adding to 120100120101 its reverse (101021001021), we get a palindrome (221121121122).

The spelling of 120100120101 in words is "one hundred twenty billion, one hundred million, one hundred twenty thousand, one hundred one".