22221330331111 has 4 divisors (see below), whose sum is σ = 22552991977912. Its totient is φ = 21889668684312.

The previous prime is 22221330331033. The next prime is 22221330331157. The reversal of 22221330331111 is 11113303312222.

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 22221330331111 - 2²³ = 22221321942503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221330337111) 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, 165830823300 + ... + 165830823433.

It is an arithmetic number, because the mean of its divisors is an integer number (5638247994478).

Almost surely, 2^{22221330331111} is an apocalyptic number.

22221330331111 is a deficient number, since it is larger than the sum of its proper divisors (331661646801).

22221330331111 is an equidigital number, since it uses as much as digits as its factorization.

22221330331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331661646800.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 22221330331111 its reverse (11113303312222), we get a palindrome (33334633643333).

The spelling of 22221330331111 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred thirty million, three hundred thirty-one thousand, one hundred eleven".