12102101010 has 48 divisors (see below), whose sum is σ = 31475246400. Its totient is φ = 3226223520.

The previous prime is 12102101009. The next prime is 12102101021. The reversal of 12102101010 is 1010120121.

It is a happy number.

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 = 12102100983 and 12102101001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296841 + ... + 335139.

It is an arithmetic number, because the mean of its divisors is an integer number (655734300).

Almost surely, 2^12102101010 is an apocalyptic number.

12102101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102101010 is an abundant number, since it is smaller than the sum of its proper divisors (19373145390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102101010 is a wasteful number, since it uses less digits than its factorization.

12102101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41823 (or 41820 counting only the distinct ones).

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

Adding to 12102101010 its reverse (1010120121), we get a palindrome (13112221131).

The spelling of 12102101010 in words is "twelve billion, one hundred two million, one hundred one thousand, ten".