12110020220221 has 32 divisors (see below), whose sum is σ = 15314016632832. Its totient is φ = 9302444948160.

The previous prime is 12110020220209. The next prime is 12110020220231. The reversal of 12110020220221 is 12202202001121.

It is a happy number.

It is not a de Polignac number, because 12110020220221 - 2⁵ = 12110020220189 is a prime.

It is a super-2 number, since 2×12110020220221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110020220195 and 12110020220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110020220201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2408551 + ... + 5479156.

It is an arithmetic number, because the mean of its divisors is an integer number (478563019776).

Almost surely, 2^{12110020220221} is an apocalyptic number.

12110020220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110020220221 is a deficient number, since it is larger than the sum of its proper divisors (3203996412611).

12110020220221 is a wasteful number, since it uses less digits than its factorization.

12110020220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888009.

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

Adding to 12110020220221 its reverse (12202202001121), we get a palindrome (24312222221342).

The spelling of 12110020220221 in words is "twelve trillion, one hundred ten billion, twenty million, two hundred twenty thousand, two hundred twenty-one".