220110111020101 has 4 divisors (see below), whose sum is σ = 221587360087500. Its totient is φ = 218632861952704.

The previous prime is 220110111020069. The next prime is 220110111020119. The reversal of 220110111020101 is 101020111011022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124628778203076 + 95481332817025 = 11163726^2 + 9771455^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110111020101 - 2⁵ = 220110111020069 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 (220110111020161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738624533476 + ... + 738624533773.

It is an arithmetic number, because the mean of its divisors is an integer number (55396840021875).

Almost surely, 2^{220110111020101} is an apocalyptic number.

It is an amenable number.

220110111020101 is a deficient number, since it is larger than the sum of its proper divisors (1477249067399).

220110111020101 is a wasteful number, since it uses less digits than its factorization.

220110111020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477249067398.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 220110111020101 its reverse (101020111011022), we get a palindrome (321130222031123).

The spelling of 220110111020101 in words is "two hundred twenty trillion, one hundred ten billion, one hundred eleven million, twenty thousand, one hundred one".