22221012111 has 4 divisors (see below), whose sum is σ = 29628016152. Its totient is φ = 14814008072.

The previous prime is 22221012101. The next prime is 22221012119. The reversal of 22221012111 is 11121012222.

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 22221012111 - 2⁹ = 22221011599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221012119) 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, 3703502016 + ... + 3703502021.

It is an arithmetic number, because the mean of its divisors is an integer number (7407004038).

Almost surely, 2^22221012111 is an apocalyptic number.

22221012111 is a deficient number, since it is larger than the sum of its proper divisors (7407004041).

22221012111 is an equidigital number, since it uses as much as digits as its factorization.

22221012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407004040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22221012111 its reverse (11121012222), we get a palindrome (33342024333).

The spelling of 22221012111 in words is "twenty-two billion, two hundred twenty-one million, twelve thousand, one hundred eleven".