12121120220110 has 16 divisors (see below), whose sum is σ = 23801472432432. Its totient is φ = 4407680080000.

The previous prime is 12121120220089. The next prime is 12121120220113. The reversal of 12121120220110 is 1102202112121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121120220113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55096000891 + ... + 55096001110.

It is an arithmetic number, because the mean of its divisors is an integer number (1487592027027).

Almost surely, 2^{12121120220110} is an apocalyptic number.

12121120220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121120220110 is a deficient number, since it is larger than the sum of its proper divisors (11680352212322).

12121120220110 is a wasteful number, since it uses less digits than its factorization.

12121120220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110192002019.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12121120220110 its reverse (1102202112121), we get a palindrome (13223322332231).

The spelling of 12121120220110 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, one hundred ten".