111022122201021 has 6 divisors (see below), whose sum is σ = 160365287623710. Its totient is φ = 74014748134008.

The previous prime is 111022122200963. The next prime is 111022122201103. The reversal of 111022122201021 is 120102221220111.

It can be written as a sum of positive squares in only one way, i.e., 100320155840025 + 10701966360996 = 10015995^2 + 3271386^2 .

It is not a de Polignac number, because 111022122201021 - 2¹⁸ = 111022121938877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111022122200985 and 111022122201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022122201721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6167895677826 + ... + 6167895677843.

It is an arithmetic number, because the mean of its divisors is an integer number (26727547937285).

Almost surely, 2^{111022122201021} is an apocalyptic number.

It is an amenable number.

111022122201021 is a deficient number, since it is larger than the sum of its proper divisors (49343165422689).

111022122201021 is a wasteful number, since it uses less digits than its factorization.

111022122201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12335791355675 (or 12335791355672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111022122201021 its reverse (120102221220111), we get a palindrome (231124343421132).

The spelling of 111022122201021 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-two million, two hundred one thousand, twenty-one".