221202113 has 16 divisors (see below), whose sum is σ = 258396480. Its totient is φ = 187123200.

The previous prime is 221202077. The next prime is 221202119. The reversal of 221202113 is 311202122.

It is a happy number.

221202113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221202113 - 2¹⁴ = 221185729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221202119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9998 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (16149780).

Almost surely, 2^221202113 is an apocalyptic number.

It is an amenable number.

221202113 is a deficient number, since it is larger than the sum of its proper divisors (37194367).

221202113 is a wasteful number, since it uses less digits than its factorization.

221202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13408.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221202113 is about 14872.8649896380. The cubic root of 221202113 is about 604.7786117093.

Adding to 221202113 its reverse (311202122), we get a palindrome (532404235).

Subtracting 221202113 from its reverse (311202122), we obtain a palindrome (90000009).

The spelling of 221202113 in words is "two hundred twenty-one million, two hundred two thousand, one hundred thirteen".