110200202111221 has 4 divisors (see below), whose sum is σ = 110232153463500. Its totient is φ = 110168250758944.

The previous prime is 110200202111143. The next prime is 110200202111261. The reversal of 110200202111221 is 122111202002011.

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 7013815986321 + 103186386124900 = 2648361^2 + 10158070^2 .

It is a cyclic number.

It is not a de Polignac number, because 110200202111221 - 2⁹ = 110200202110709 is a prime.

It is a super-2 number, since 2×110200202111221² (a number of 29 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 = 110200202111195 and 110200202111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110200202111261) 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, 15975670966 + ... + 15975677863.

It is an arithmetic number, because the mean of its divisors is an integer number (27558038365875).

Almost surely, 2^{110200202111221} is an apocalyptic number.

It is an amenable number.

110200202111221 is a deficient number, since it is larger than the sum of its proper divisors (31951352279).

110200202111221 is an equidigital number, since it uses as much as digits as its factorization.

110200202111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31951352278.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110200202111221 its reverse (122111202002011), we get a palindrome (232311404113232).

The spelling of 110200202111221 in words is "one hundred ten trillion, two hundred billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".