12012020110 has 32 divisors (see below), whose sum is σ = 22538023200.
Its totient is φ = 4603697280.
The previous prime is 12012020107. The next prime is 12012020131. The reversal of 12012020110 is 1102021021.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120105 + ... + 196084.
It is an arithmetic number, because the mean of its divisors is an integer number (704313225).
Almost surely, 212012020110 is an apocalyptic number.
12012020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12012020110 is a deficient number, since it is larger than the sum of its proper divisors (10526003090).
12012020110 is a wasteful number, since it uses less digits than its factorization.
12012020110 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 316356.
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 12012020110 its reverse (1102021021), we get a palindrome (13114041131).
The spelling of 12012020110 in words is "twelve billion, twelve million, twenty thousand, one hundred ten".