12101112010 has 32 divisors (see below), whose sum is σ = 23472524880. Its totient is φ = 4465248768.

The previous prime is 12101111963. The next prime is 12101112041. The reversal of 12101112010 is 1021110121.

It can be written as a sum of positive squares in 8 ways, for example, as 4069546849 + 8031565161 = 63793^2 + 89619^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180244 + ... + 238096.

Almost surely, 2^12101112010 is an apocalyptic number.

12101112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101112010 is a deficient number, since it is larger than the sum of its proper divisors (11371412870).

12101112010 is a wasteful number, since it uses less digits than its factorization.

12101112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59482.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12101112010 its reverse (1021110121), we get a palindrome (13122222131).

It can be divided in two parts, 1210111 and 2010, that added together give a palindrome (1212121).

The spelling of 12101112010 in words is "twelve billion, one hundred one million, one hundred twelve thousand, ten".