12001102101 has 8 divisors (see below), whose sum is σ = 17779410560. Its totient is φ = 8000734716.

The previous prime is 12001102079. The next prime is 12001102189. The reversal of 12001102101 is 10120110021.

It is a happy number.

It is not a de Polignac number, because 12001102101 - 2⁶ = 12001102037 is a prime.

It is a super-2 number, since 2×12001102101² (a number of 21 digits) contains 22 as substring.

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 (12001102801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222242605 + ... + 222242658.

It is an arithmetic number, because the mean of its divisors is an integer number (2222426320).

Almost surely, 2^12001102101 is an apocalyptic number.

It is an amenable number.

12001102101 is a deficient number, since it is larger than the sum of its proper divisors (5778308459).

12001102101 is an equidigital number, since it uses as much as digits as its factorization.

12001102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444485272 (or 444485266 counting only the distinct ones).

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

Adding to 12001102101 its reverse (10120110021), we get a palindrome (22121212122).

The spelling of 12001102101 in words is "twelve billion, one million, one hundred two thousand, one hundred one".