12021120210 has 64 divisors (see below), whose sum is σ = 31484795904. Its totient is φ = 2913163200.

The previous prime is 12021120187. The next prime is 12021120227. The reversal of 12021120210 is 1202112021.

12021120210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12021120210² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317765 + ... + 1326855.

It is an arithmetic number, because the mean of its divisors is an integer number (491949936).

Almost surely, 2^12021120210 is an apocalyptic number.

12021120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021120210 is an abundant number, since it is smaller than the sum of its proper divisors (19463675694).

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

12021120210 is a wasteful number, since it uses less digits than its factorization.

12021120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13119.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12021120210 its reverse (1202112021), we get a palindrome (13223232231).

It can be divided in two parts, 12021 and 120210, that added together give a palindrome (132231).

The spelling of 12021120210 in words is "twelve billion, twenty-one million, one hundred twenty thousand, two hundred ten".