120100002111 has 24 divisors (see below), whose sum is σ = 178185294144. Its totient is φ = 77894429760.

The previous prime is 120100002097. The next prime is 120100002179. The reversal of 120100002111 is 111200001021.

It is a happy number.

It is not a de Polignac number, because 120100002111 - 2¹⁴ = 120099985727 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 120100002093 and 120100002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100002311) 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, 5537290 + ... + 5558936.

It is an arithmetic number, because the mean of its divisors is an integer number (7424387256).

Almost surely, 2^120100002111 is an apocalyptic number.

120100002111 is a deficient number, since it is larger than the sum of its proper divisors (58085292033).

120100002111 is a wasteful number, since it uses less digits than its factorization.

120100002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38351 (or 38348 counting only the distinct ones).

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

Adding to 120100002111 its reverse (111200001021), we get a palindrome (231300003132).

The spelling of 120100002111 in words is "one hundred twenty billion, one hundred million, two thousand, one hundred eleven".