111021122021201 has 4 divisors (see below), whose sum is σ = 126881282309952. Its totient is φ = 95160961732452.

The previous prime is 111021122021167. The next prime is 111021122021209. The reversal of 111021122021201 is 102120221120111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111021122021201 - 2¹⁴ = 111021122004817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111021122021201.

It is not an unprimeable number, because it can be changed into a prime (111021122021209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7930080144365 + ... + 7930080144378.

It is an arithmetic number, because the mean of its divisors is an integer number (31720320577488).

Almost surely, 2^{111021122021201} is an apocalyptic number.

It is an amenable number.

111021122021201 is a deficient number, since it is larger than the sum of its proper divisors (15860160288751).

111021122021201 is an equidigital number, since it uses as much as digits as its factorization.

111021122021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15860160288750.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111021122021201 its reverse (102120221120111), we get a palindrome (213141343141312).

The spelling of 111021122021201 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty-two million, twenty-one thousand, two hundred one".