22220220111 has 16 divisors (see below), whose sum is σ = 31581043200. Its totient is φ = 13856177088.

The previous prime is 22220220091. The next prime is 22220220193. The reversal of 22220220111 is 11102202222.

It is not a de Polignac number, because 22220220111 - 2¹¹ = 22220218063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220230111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2462766 + ... + 2471771.

It is an arithmetic number, because the mean of its divisors is an integer number (1973815200).

Almost surely, 2^22220220111 is an apocalyptic number.

22220220111 is a deficient number, since it is larger than the sum of its proper divisors (9360823089).

22220220111 is a wasteful number, since it uses less digits than its factorization.

22220220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934638.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22220220111 its reverse (11102202222), we get a palindrome (33322422333).

The spelling of 22220220111 in words is "twenty-two billion, two hundred twenty million, two hundred twenty thousand, one hundred eleven".