221211301113 has 24 divisors (see below), whose sum is σ = 359819755776. Its totient is φ = 129742696800.

The previous prime is 221211301097. The next prime is 221211301127. The reversal of 221211301113 is 311103112122.

It is not a de Polignac number, because 221211301113 - 2⁴ = 221211301097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221211301183) 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, 36036570 + ... + 36042707.

It is an arithmetic number, because the mean of its divisors is an integer number (14992489824).

Almost surely, 2^221211301113 is an apocalyptic number.

It is an amenable number.

221211301113 is a deficient number, since it is larger than the sum of its proper divisors (138608454663).

221211301113 is a wasteful number, since it uses less digits than its factorization.

221211301113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72079325 (or 72079322 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 221211301113 its reverse (311103112122), we get a palindrome (532314413235).

The spelling of 221211301113 in words is "two hundred twenty-one billion, two hundred eleven million, three hundred one thousand, one hundred thirteen".