110202020101021 has 4 divisors (see below), whose sum is σ = 110251151632512. Its totient is φ = 110152888569532.

The previous prime is 110202020101013. The next prime is 110202020101073. The reversal of 110202020101021 is 120101020202011.

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 a cyclic number.

It is not a de Polignac number, because 110202020101021 - 2³ = 110202020101013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110202020100992 and 110202020101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110202020101081) 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, 24565762381 + ... + 24565766866.

It is an arithmetic number, because the mean of its divisors is an integer number (27562787908128).

Almost surely, 2^{110202020101021} is an apocalyptic number.

It is an amenable number.

110202020101021 is a deficient number, since it is larger than the sum of its proper divisors (49131531491).

110202020101021 is an equidigital number, since it uses as much as digits as its factorization.

110202020101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49131531490.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110202020101021 its reverse (120101020202011), we get a palindrome (230303040303032).

The spelling of 110202020101021 in words is "one hundred ten trillion, two hundred two billion, twenty million, one hundred one thousand, twenty-one".