4201111120221 has 24 divisors (see below), whose sum is σ = 6332209094016. Its totient is φ = 2678927280480.

The previous prime is 4201111120211. The next prime is 4201111120223. The reversal of 4201111120221 is 1220211111024.

4201111120221 is a `hidden beast` number, since 420 + 1 + 1 + 1 + 1 + 1 + 20 + 221 = 666.

It is not a de Polignac number, because 4201111120221 - 2⁷ = 4201111120093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4201111120194 and 4201111120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4201111120223) 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 23 ways as a sum of consecutive naturals, for example, 18032151 + ... + 18263643.

It is an arithmetic number, because the mean of its divisors is an integer number (263842045584).

Almost surely, 2^{4201111120221} is an apocalyptic number.

It is an amenable number.

4201111120221 is a deficient number, since it is larger than the sum of its proper divisors (2131097973795).

4201111120221 is a wasteful number, since it uses less digits than its factorization.

4201111120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319193 (or 319190 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 4201111120221 its reverse (1220211111024), we get a palindrome (5421322231245).

The spelling of 4201111120221 in words is "four trillion, two hundred one billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-one".