22232212222 has 16 divisors (see below), whose sum is σ = 36624150000. Its totient is φ = 10037727040.

The previous prime is 22232212207. The next prime is 22232212241. The reversal of 22232212222 is 22221223222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22232212193 and 22232212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3387847 + ... + 3394402.

It is an arithmetic number, because the mean of its divisors is an integer number (2289009375).

Almost surely, 2^22232212222 is an apocalyptic number.

22232212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22232212222 is a deficient number, since it is larger than the sum of its proper divisors (14391937778).

22232212222 is a wasteful number, since it uses less digits than its factorization.

22232212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782411.

The product of its digits is 1536, while the sum is 22.

Adding to 22232212222 its reverse (22221223222), we get a palindrome (44453435444).

The spelling of 22232212222 in words is "twenty-two billion, two hundred thirty-two million, two hundred twelve thousand, two hundred twenty-two".