111101200221 has 16 divisors (see below), whose sum is σ = 161611507008. Its totient is φ = 67329993600.

The previous prime is 111101200169. The next prime is 111101200237. The reversal of 111101200221 is 122002101111.

It is not a de Polignac number, because 111101200221 - 2¹⁵ = 111101167453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111101200197 and 111101200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101200261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507385 + ... + 692561.

It is an arithmetic number, because the mean of its divisors is an integer number (10100719188).

Almost surely, 2^111101200221 is an apocalyptic number.

111101200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111101200221 is a deficient number, since it is larger than the sum of its proper divisors (50510306787).

111101200221 is a wasteful number, since it uses less digits than its factorization.

111101200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203372.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111101200221 its reverse (122002101111), we get a palindrome (233103301332).

The spelling of 111101200221 in words is "one hundred eleven billion, one hundred one million, two hundred thousand, two hundred twenty-one".