111211202200221 has 40 divisors (see below), whose sum is σ = 172377903439104. Its totient is φ = 71377405079040.

The previous prime is 111211202200213. The next prime is 111211202200237. The reversal of 111211202200221 is 122002202112111.

111211202200221 is a `hidden beast` number, since 1 + 1 + 121 + 120 + 2 + 200 + 221 = 666.

It is not a de Polignac number, because 111211202200221 - 2³ = 111211202200213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111211202200194 and 111211202200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211202200921) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 114255291 + ... + 115224536.

Almost surely, 2^{111211202200221} is an apocalyptic number.

It is an amenable number.

111211202200221 is a deficient number, since it is larger than the sum of its proper divisors (61166701238883).

111211202200221 is a wasteful number, since it uses less digits than its factorization.

111211202200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229480063 (or 229480054 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111211202200221 its reverse (122002202112111), we get a palindrome (233213404312332).

The spelling of 111211202200221 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred two million, two hundred thousand, two hundred twenty-one".