12021001220110 has 128 divisors (see below), whose sum is σ = 23740174313856. Its totient is φ = 4364347637760.

The previous prime is 12021001220101. The next prime is 12021001220147. The reversal of 12021001220110 is 1102210012021.

It is a super-2 number, since 2×12021001220110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 579398757 + ... + 579419503.

It is an arithmetic number, because the mean of its divisors is an integer number (185470111827).

Almost surely, 2^{12021001220110} is an apocalyptic number.

12021001220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021001220110 is a deficient number, since it is larger than the sum of its proper divisors (11719173093746).

12021001220110 is a wasteful number, since it uses less digits than its factorization.

12021001220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21766.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021001220110 its reverse (1102210012021), we get a palindrome (13123211232131).

The spelling of 12021001220110 in words is "twelve trillion, twenty-one billion, one million, two hundred twenty thousand, one hundred ten".