221200222200113 has 4 divisors (see below), whose sum is σ = 238215623907828. Its totient is φ = 204184820492400.

The previous prime is 221200222200091. The next prime is 221200222200137. The reversal of 221200222200113 is 311002222002122.

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 56798410206784 + 164401811993329 = 7536472^2 + 12821927^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200222200113 - 2⁶ = 221200222200049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221200222200163) 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, 8507700853838 + ... + 8507700853863.

It is an arithmetic number, because the mean of its divisors is an integer number (59553905976957).

Almost surely, 2^{221200222200113} is an apocalyptic number.

It is an amenable number.

221200222200113 is a deficient number, since it is larger than the sum of its proper divisors (17015401707715).

221200222200113 is a wasteful number, since it uses less digits than its factorization.

221200222200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17015401707714.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221200222200113 its reverse (311002222002122), we get a palindrome (532202444202235).

The spelling of 221200222200113 in words is "two hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, two hundred thousand, one hundred thirteen".