110201312021 has 4 divisors (see below), whose sum is σ = 111439529100. Its totient is φ = 108963094944.

The previous prime is 110201312017. The next prime is 110201312051. The reversal of 110201312021 is 120213102011.

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 67563604900 + 42637707121 = 259930^2 + 206489^2 .

It is a cyclic number.

It is not a de Polignac number, because 110201312021 - 2² = 110201312017 is a prime.

It is a super-2 number, since 2×110201312021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110201311987 and 110201312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201312051) 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, 619108406 + ... + 619108583.

It is an arithmetic number, because the mean of its divisors is an integer number (27859882275).

Almost surely, 2^110201312021 is an apocalyptic number.

It is an amenable number.

110201312021 is a deficient number, since it is larger than the sum of its proper divisors (1238217079).

110201312021 is an equidigital number, since it uses as much as digits as its factorization.

110201312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238217078.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 110201312021 its reverse (120213102011), we get a palindrome (230414414032).

The spelling of 110201312021 in words is "one hundred ten billion, two hundred one million, three hundred twelve thousand, twenty-one".