221002020211111 has 8 divisors (see below), whose sum is σ = 232636020166400. Its totient is φ = 209368251723960.

The previous prime is 221002020211069. The next prime is 221002020211163. The reversal of 221002020211111 is 111112020200122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221002020211111 - 2³³ = 220993430276519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002020271111) 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, 55905501 + ... + 59727958.

It is an arithmetic number, because the mean of its divisors is an integer number (29079502520800).

Almost surely, 2^{221002020211111} is an apocalyptic number.

221002020211111 is a deficient number, since it is larger than the sum of its proper divisors (11633999955289).

221002020211111 is a wasteful number, since it uses less digits than its factorization.

221002020211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115734069.

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

Adding to 221002020211111 its reverse (111112020200122), we get a palindrome (332114040411233).

The spelling of 221002020211111 in words is "two hundred twenty-one trillion, two billion, twenty million, two hundred eleven thousand, one hundred eleven".