110202010202021 has 4 divisors (see below), whose sum is σ = 110212067893932. Its totient is φ = 110191952510112.

The previous prime is 110202010201991. The next prime is 110202010202093. The reversal of 110202010202021 is 120202010202011.

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 31943464941025 + 78258545260996 = 5651855^2 + 8846386^2 .

It is a cyclic number.

It is not a de Polignac number, because 110202010202021 - 2³⁸ = 109927132295077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110202010201987 and 110202010202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110202010262021) 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, 5028829520 + ... + 5028851433.

It is an arithmetic number, because the mean of its divisors is an integer number (27553016973483).

Almost surely, 2^{110202010202021} is an apocalyptic number.

It is an amenable number.

110202010202021 is a deficient number, since it is larger than the sum of its proper divisors (10057691911).

110202010202021 is a wasteful number, since it uses less digits than its factorization.

110202010202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057691910.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 110202010202021 its reverse (120202010202011), we get a palindrome (230404020404032).

The spelling of 110202010202021 in words is "one hundred ten trillion, two hundred two billion, ten million, two hundred two thousand, twenty-one".