221303111111007 has 4 divisors (see below), whose sum is σ = 295070814814680. Its totient is φ = 147535407407336.

The previous prime is 221303111110979. The next prime is 221303111111099. The reversal of 221303111111007 is 700111111303122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221303111111007 - 2¹⁸ = 221303110848863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303111111807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36883851851832 + ... + 36883851851837.

It is an arithmetic number, because the mean of its divisors is an integer number (73767703703670).

Almost surely, 2^{221303111111007} is an apocalyptic number.

221303111111007 is a deficient number, since it is larger than the sum of its proper divisors (73767703703673).

221303111111007 is an equidigital number, since it uses as much as digits as its factorization.

221303111111007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73767703703672.

The product of its (nonzero) digits is 252, while the sum is 24.

Adding to 221303111111007 its reverse (700111111303122), we get a palindrome (921414222414129).

The spelling of 221303111111007 in words is "two hundred twenty-one trillion, three hundred three billion, one hundred eleven million, one hundred eleven thousand, seven".