111001200221221 has 16 divisors (see below), whose sum is σ = 113328621504000. Its totient is φ = 108700424901568.

The previous prime is 111001200221209. The next prime is 111001200221231. The reversal of 111001200221221 is 122122002100111.

It is a cyclic number.

It is not a de Polignac number, because 111001200221221 - 2⁵ = 111001200221189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111001200221195 and 111001200221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001200221231) 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, 3445306 + ... + 15292891.

It is an arithmetic number, because the mean of its divisors is an integer number (7083038844000).

Almost surely, 2^{111001200221221} is an apocalyptic number.

It is an amenable number.

111001200221221 is a deficient number, since it is larger than the sum of its proper divisors (2327421282779).

111001200221221 is a wasteful number, since it uses less digits than its factorization.

111001200221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18738908.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111001200221221 its reverse (122122002100111), we get a palindrome (233123202321332).

The spelling of 111001200221221 in words is "one hundred eleven trillion, one billion, two hundred million, two hundred twenty-one thousand, two hundred twenty-one".