111012022200221 has 8 divisors (see below), whose sum is σ = 111037815826680. Its totient is φ = 110986229716992.

The previous prime is 111012022200181. The next prime is 111012022200223. The reversal of 111012022200221 is 122002220210111.

It can be written as a sum of positive squares in 4 ways, for example, as 8343351372196 + 102668670828025 = 2888486^2 + 10132555^2 .

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 111012022200221 - 2¹⁴ = 111012022183837 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 111012022200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012022200223) 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, 212131541 + ... + 212654213.

It is an arithmetic number, because the mean of its divisors is an integer number (13879726978335).

Almost surely, 2^{111012022200221} is an apocalyptic number.

It is an amenable number.

111012022200221 is a deficient number, since it is larger than the sum of its proper divisors (25793626459).

111012022200221 is an equidigital number, since it uses as much as digits as its factorization.

111012022200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571615.

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

Adding to 111012022200221 its reverse (122002220210111), we get a palindrome (233014242410332).

The spelling of 111012022200221 in words is "one hundred eleven trillion, twelve billion, twenty-two million, two hundred thousand, two hundred twenty-one".