221313012113 has 8 divisors (see below), whose sum is σ = 228576969216. Its totient is φ = 214056856800.

The previous prime is 221313012091. The next prime is 221313012119. The reversal of 221313012113 is 311210313122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221313012113 - 2¹⁶ = 221312946577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313012119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892756 + ... + 2006277.

It is an arithmetic number, because the mean of its divisors is an integer number (28572121152).

Almost surely, 2^221313012113 is an apocalyptic number.

It is an amenable number.

221313012113 is a deficient number, since it is larger than the sum of its proper divisors (7263957103).

221313012113 is a wasteful number, since it uses less digits than its factorization.

221313012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900895.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 221313012113 its reverse (311210313122), we get a palindrome (532523325235).

The spelling of 221313012113 in words is "two hundred twenty-one billion, three hundred thirteen million, twelve thousand, one hundred thirteen".