22220220220222 has 16 divisors (see below), whose sum is σ = 34789954268160. Its totient is φ = 10623859884792.

The previous prime is 22220220220091. The next prime is 22220220220223. The reversal of 22220220220222 is 22202202202222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22220220220193 and 22220220220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220220220223) 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, 72617478 + ... + 72922825.

It is an arithmetic number, because the mean of its divisors is an integer number (2174372141760).

Almost surely, 2^{22220220220222} is an apocalyptic number.

22220220220222 is a deficient number, since it is larger than the sum of its proper divisors (12569734047938).

22220220220222 is a wasteful number, since it uses less digits than its factorization.

22220220220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145543647.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22220220220222 its reverse (22202202202222), we get a palindrome (44422422422444).

It can be divided in two parts, 2 and 2220220220222, that multiplied together give a palindrome (4440440440444).

The spelling of 22220220220222 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-two".