111221201222101 has 8 divisors (see below), whose sum is σ = 111253779495360. Its totient is φ = 111188623701792.

The previous prime is 111221201222051. The next prime is 111221201222113. The reversal of 111221201222101 is 101222102122111.

It is a happy number.

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 111221201222101 - 2⁷ = 111221201221973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221201222161) 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, 452450241 + ... + 452695993.

It is an arithmetic number, because the mean of its divisors is an integer number (13906722436920).

Almost surely, 2^{111221201222101} is an apocalyptic number.

It is an amenable number.

111221201222101 is a deficient number, since it is larger than the sum of its proper divisors (32578273259).

111221201222101 is a wasteful number, since it uses less digits than its factorization.

111221201222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376475.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111221201222101 its reverse (101222102122111), we get a palindrome (212443303344212).

The spelling of 111221201222101 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, one hundred one".