22221020111 has 8 divisors (see below), whose sum is σ = 22298740464. Its totient is φ = 22143335040.

The previous prime is 22221020071. The next prime is 22221020113. The reversal of 22221020111 is 11102012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22221020111 - 2¹⁸ = 22220757967 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 (22221020113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147831 + ... + 2158151.

It is an arithmetic number, because the mean of its divisors is an integer number (2787342558).

Almost surely, 2^22221020111 is an apocalyptic number.

22221020111 is a deficient number, since it is larger than the sum of its proper divisors (77720353).

22221020111 is a wasteful number, since it uses less digits than its factorization.

22221020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17641.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22221020111 its reverse (11102012222), we get a palindrome (33323032333).

The spelling of 22221020111 in words is "twenty-two billion, two hundred twenty-one million, twenty thousand, one hundred eleven".