12120220021210 has 32 divisors (see below), whose sum is σ = 24958808075520. Its totient is φ = 4151206668672.

The previous prime is 12120220021187. The next prime is 12120220021211. The reversal of 12120220021210 is 1212002202121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12120220021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89459715 + ... + 89595094.

It is an arithmetic number, because the mean of its divisors is an integer number (779962752360).

Almost surely, 2^{12120220021210} is an apocalyptic number.

12120220021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120220021210 is an abundant number, since it is smaller than the sum of its proper divisors (12838588054310).

12120220021210 is a wasteful number, since it uses less digits than its factorization.

12120220021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179055790.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120220021210 its reverse (1212002202121), we get a palindrome (13332222223331).

The spelling of 12120220021210 in words is "twelve trillion, one hundred twenty billion, two hundred twenty million, twenty-one thousand, two hundred ten".