12102010101 has 12 divisors (see below), whose sum is σ = 17522406720. Its totient is φ = 8048748840.

The previous prime is 12102010087. The next prime is 12102010147. The reversal of 12102010101 is 10101020121.

It is a happy number.

It is not a de Polignac number, because 12102010101 - 2⁵ = 12102010069 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 (12102011101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1600845 + ... + 1608386.

It is an arithmetic number, because the mean of its divisors is an integer number (1460200560).

Almost surely, 2^12102010101 is an apocalyptic number.

It is an amenable number.

12102010101 is a deficient number, since it is larger than the sum of its proper divisors (5420396619).

12102010101 is a wasteful number, since it uses less digits than its factorization.

12102010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209656 (or 3209653 counting only the distinct ones).

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

Adding to 12102010101 its reverse (10101020121), we get a palindrome (22203030222).

The spelling of 12102010101 in words is "twelve billion, one hundred two million, ten thousand, one hundred one".