110202022122021 has 24 divisors (see below), whose sum is σ = 161170002073080. Its totient is φ = 72553614576000.

The previous prime is 110202022122019. The next prime is 110202022122037. The reversal of 110202022122021 is 120221220202011.

It is a happy number.

110202022122021 is a `hidden beast` number, since 1 + 1 + 0 + 202 + 0 + 221 + 220 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10157517171396 + 100044504950625 = 3187086^2 + 10002225^2 .

It is not a de Polignac number, because 110202022122021 - 2¹ = 110202022122019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110202022121985 and 110202022122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110202022122091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155474610 + ... + 156181811.

It is an arithmetic number, because the mean of its divisors is an integer number (6715416753045).

Almost surely, 2^{110202022122021} is an apocalyptic number.

It is an amenable number.

110202022122021 is a deficient number, since it is larger than the sum of its proper divisors (50967979951059).

110202022122021 is a wasteful number, since it uses less digits than its factorization.

110202022122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311656917 (or 311656914 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 110202022122021 its reverse (120221220202011), we get a palindrome (230423242324032).

The spelling of 110202022122021 in words is "one hundred ten trillion, two hundred two billion, twenty-two million, one hundred twenty-two thousand, twenty-one".