22011012222 has 16 divisors (see below), whose sum is σ = 44038319232. Its totient is φ = 7334288280.

The previous prime is 22011012217. The next prime is 22011012229. The reversal of 22011012222 is 22221011022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011012229) 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, 661354 + ... + 693837.

It is an arithmetic number, because the mean of its divisors is an integer number (2752394952).

Almost surely, 2^22011012222 is an apocalyptic number.

22011012222 is an abundant number, since it is smaller than the sum of its proper divisors (22027307010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22011012222 is a wasteful number, since it uses less digits than its factorization.

22011012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357903.

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

Adding to 22011012222 its reverse (22221011022), we get a palindrome (44232023244).

The spelling of 22011012222 in words is "twenty-two billion, eleven million, twelve thousand, two hundred twenty-two".