12121012211110 has 32 divisors (see below), whose sum is σ = 23846769556992. Its totient is φ = 4399213171680.

The previous prime is 12121012211107. The next prime is 12121012211141. The reversal of 12121012211110 is 1111221012121.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 105287614 + ... + 105402673.

It is an arithmetic number, because the mean of its divisors is an integer number (745211548656).

Almost surely, 2^{12121012211110} is an apocalyptic number.

12121012211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121012211110 is a deficient number, since it is larger than the sum of its proper divisors (11725757345882).

12121012211110 is a wasteful number, since it uses less digits than its factorization.

12121012211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210690828.

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

Adding to 12121012211110 its reverse (1111221012121), we get a palindrome (13232233223231).

The spelling of 12121012211110 in words is "twelve trillion, one hundred twenty-one billion, twelve million, two hundred eleven thousand, one hundred ten".