221002002111 has 8 divisors (see below), whose sum is σ = 321457457664. Its totient is φ = 133940607320.

The previous prime is 221002002059. The next prime is 221002002113. The reversal of 221002002111 is 111200200122.

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 221002002111 - 2²⁷ = 220867784383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002002113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348515151 + ... + 3348515216.

It is an arithmetic number, because the mean of its divisors is an integer number (40182182208).

Almost surely, 2^221002002111 is an apocalyptic number.

221002002111 is a deficient number, since it is larger than the sum of its proper divisors (100455455553).

221002002111 is a wasteful number, since it uses less digits than its factorization.

221002002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697030381.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221002002111 its reverse (111200200122), we get a palindrome (332202202233).

The spelling of 221002002111 in words is "two hundred twenty-one billion, two million, two thousand, one hundred eleven".