111022232221021 has 64 divisors (see below), whose sum is σ = 134206394572800. Its totient is φ = 90596691440640.

The previous prime is 111022232221009. The next prime is 111022232221039. The reversal of 111022232221021 is 120122232220111.

It is not a de Polignac number, because 111022232221021 - 2⁹ = 111022232220509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111022232220983 and 111022232221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022232221001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12068941180 + ... + 12068950378.

It is an arithmetic number, because the mean of its divisors is an integer number (2096974915200).

Almost surely, 2^{111022232221021} is an apocalyptic number.

111022232221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111022232221021 is a deficient number, since it is larger than the sum of its proper divisors (23184162351779).

111022232221021 is a wasteful number, since it uses less digits than its factorization.

111022232221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17146.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111022232221021 its reverse (120122232220111), we get a palindrome (231144464441132).

The spelling of 111022232221021 in words is "one hundred eleven trillion, twenty-two billion, two hundred thirty-two million, two hundred twenty-one thousand, twenty-one".