110201220220021 has 4 divisors (see below), whose sum is σ = 125944251680032. Its totient is φ = 94458188760012.

The previous prime is 110201220219973. The next prime is 110201220220027. The reversal of 110201220220021 is 120022022102011.

It is a happy number.

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 110201220220021 - 2²⁹ = 110200683349109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110201220219977 and 110201220220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201220220027) 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, 7871515729995 + ... + 7871515730008.

It is an arithmetic number, because the mean of its divisors is an integer number (31486062920008).

Almost surely, 2^{110201220220021} is an apocalyptic number.

It is an amenable number.

110201220220021 is a deficient number, since it is larger than the sum of its proper divisors (15743031460011).

110201220220021 is an equidigital number, since it uses as much as digits as its factorization.

110201220220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15743031460010.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 110201220220021 its reverse (120022022102011), we get a palindrome (230223242322032).

The spelling of 110201220220021 in words is "one hundred ten trillion, two hundred one billion, two hundred twenty million, two hundred twenty thousand, twenty-one".