111212200200221 has 8 divisors (see below), whose sum is σ = 111445536161280. Its totient is φ = 110978869074192.

The previous prime is 111212200200149. The next prime is 111212200200223. The reversal of 111212200200221 is 122002002212111.

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-111212200200221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111212200200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212200200223) 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, 46843616 + ... + 49160438.

It is an arithmetic number, because the mean of its divisors is an integer number (13930692020160).

Almost surely, 2^{111212200200221} is an apocalyptic number.

It is an amenable number.

111212200200221 is a deficient number, since it is larger than the sum of its proper divisors (233335961059).

111212200200221 is a wasteful number, since it uses less digits than its factorization.

111212200200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417515.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111212200200221 its reverse (122002002212111), we get a palindrome (233214202412332).

The spelling of 111212200200221 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred million, two hundred thousand, two hundred twenty-one".