22220220022 has 288 divisors, whose sum is σ = 49747128480. Its totient is φ = 7344691200.

The previous prime is 22220219963. The next prime is 22220220037. The reversal of 22220220022 is 22002202222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22220219978 and 22220220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 159857629 + ... + 159857767.

It is an arithmetic number, because the mean of its divisors is an integer number (172733085).

Almost surely, 2^22220220022 is an apocalyptic number.

22220220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22220220022 is an abundant number, since it is smaller than the sum of its proper divisors (27526908458).

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

22220220022 is a wasteful number, since it uses less digits than its factorization.

22220220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22220220022 its reverse (22002202222), we get a palindrome (44222422244).

It can be divided in two parts, 222202200 and 22, that added together give a palindrome (222202222).

The spelling of 22220220022 in words is "twenty-two billion, two hundred twenty million, two hundred twenty thousand, twenty-two".