111202222000221 has 48 divisors (see below), whose sum is σ = 181275546256000. Its totient is φ = 67323357541440.

The previous prime is 111202222000217. The next prime is 111202222000249. The reversal of 111202222000221 is 122000222202111.

It is a happy number.

111202222000221 is a `hidden beast` number, since 1 + 1 + 1 + 20 + 222 + 200 + 0 + 221 = 666.

It is not a de Polignac number, because 111202222000221 - 2² = 111202222000217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111202222000194 and 111202222000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202222000271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15102121 + ... + 21224478.

Almost surely, 2^{111202222000221} is an apocalyptic number.

111202222000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111202222000221 is a deficient number, since it is larger than the sum of its proper divisors (70073324255779).

111202222000221 is a wasteful number, since it uses less digits than its factorization.

111202222000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36327567 (or 36327550 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111202222000221 its reverse (122000222202111), we get a palindrome (233202444202332).

The spelling of 111202222000221 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.