111202201122221 has 8 divisors (see below), whose sum is σ = 121311927357600. Its totient is φ = 101092547424240.

The previous prime is 111202201122209. The next prime is 111202201122293. The reversal of 111202201122221 is 122221102202111.

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 111202201122221 - 2¹⁰ = 111202201121197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111202201122193 and 111202201122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202201122821) 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, 14903891 + ... + 21083888.

It is an arithmetic number, because the mean of its divisors is an integer number (15163990919700).

Almost surely, 2^{111202201122221} is an apocalyptic number.

111202201122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111202201122221 is a deficient number, since it is larger than the sum of its proper divisors (10109726235379).

111202201122221 is a wasteful number, since it uses less digits than its factorization.

111202201122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36268699.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111202201122221 its reverse (122221102202111), we get a palindrome (233423303324332).

The spelling of 111202201122221 in words is "one hundred eleven trillion, two hundred two billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-one".