2221103110231 has 4 divisors (see below), whose sum is σ = 2275276356864. Its totient is φ = 2166929863600.

The previous prime is 2221103110141. The next prime is 2221103110241. The reversal of 2221103110231 is 1320113011222.

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 2221103110231 - 2¹³ = 2221103102039 is a prime.

It is a super-2 number, since 2×2221103110231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221103110199 and 2221103110208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221103110241) 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, 27086623255 + ... + 27086623336.

It is an arithmetic number, because the mean of its divisors is an integer number (568819089216).

Almost surely, 2^{2221103110231} is an apocalyptic number.

2221103110231 is a deficient number, since it is larger than the sum of its proper divisors (54173246633).

2221103110231 is an equidigital number, since it uses as much as digits as its factorization.

2221103110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54173246632.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2221103110231 its reverse (1320113011222), we get a palindrome (3541216121453).

Subtracting from 2221103110231 its reverse (1320113011222), we obtain a palindrome (900990099009).

The spelling of 2221103110231 in words is "two trillion, two hundred twenty-one billion, one hundred three million, one hundred ten thousand, two hundred thirty-one".