221002220111 has 8 divisors (see below), whose sum is σ = 221550759600. Its totient is φ = 220453793280.

The previous prime is 221002220057. The next prime is 221002220123. The reversal of 221002220111 is 111022200122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002220111 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 (221002220161) 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, 5004335 + ... + 5048303.

It is an arithmetic number, because the mean of its divisors is an integer number (27693844950).

Almost surely, 2^221002220111 is an apocalyptic number.

221002220111 is a deficient number, since it is larger than the sum of its proper divisors (548539489).

221002220111 is a wasteful number, since it uses less digits than its factorization.

221002220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56329.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221002220111 its reverse (111022200122), we get a palindrome (332024420233).

The spelling of 221002220111 in words is "two hundred twenty-one billion, two million, two hundred twenty thousand, one hundred eleven".