111221010232231 has 8 divisors (see below), whose sum is σ = 112954755672704. Its totient is φ = 109489433331960.

The previous prime is 111221010232229. The next prime is 111221010232253. The reversal of 111221010232231 is 132232010122111.

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 111221010232231 - 2¹ = 111221010232229 is a prime.

It is a super-2 number, since 2×111221010232231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221010232201) 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, 542031675 + ... + 542236828.

It is an arithmetic number, because the mean of its divisors is an integer number (14119344459088).

Almost surely, 2^{111221010232231} is an apocalyptic number.

111221010232231 is a deficient number, since it is larger than the sum of its proper divisors (1733745440473).

111221010232231 is a wasteful number, since it uses less digits than its factorization.

111221010232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084270101.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111221010232231 its reverse (132232010122111), we get a palindrome (243453020354342).

The spelling of 111221010232231 in words is "one hundred eleven trillion, two hundred twenty-one billion, ten million, two hundred thirty-two thousand, two hundred thirty-one".