221112133231113 has 16 divisors (see below), whose sum is σ = 327639137467840. Its totient is φ = 147378565780992.

The previous prime is 221112133231111. The next prime is 221112133231147. The reversal of 221112133231113 is 311132331211122.

221112133231113 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 1 + 2 + 1 + 332 + 311 + 13 = 666.

It is not a de Polignac number, because 221112133231113 - 2¹ = 221112133231111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221112133231111) 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, 819947131 + ... + 820216752.

It is an arithmetic number, because the mean of its divisors is an integer number (20477446091740).

Almost surely, 2^{221112133231113} is an apocalyptic number.

It is an amenable number.

221112133231113 is a deficient number, since it is larger than the sum of its proper divisors (106527004236727).

221112133231113 is a wasteful number, since it uses less digits than its factorization.

221112133231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640168885 (or 1640168879 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 221112133231113 its reverse (311132331211122), we get a palindrome (532244464442235).

The spelling of 221112133231113 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred thirteen".