22210000221220 has 96 divisors (see below), whose sum is σ = 53382286540800. Its totient is φ = 7603681797504.

The previous prime is 22210000221173. The next prime is 22210000221223. The reversal of 22210000221220 is 2212200001222.

It is a junction number, because it is equal to n+sod(n) for n = 22210000221194 and 22210000221203.

It is not an unprimeable number, because it can be changed into a prime (22210000221223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 265504161 + ... + 265587799.

It is an arithmetic number, because the mean of its divisors is an integer number (556065484800).

Almost surely, 2^{22210000221220} is an apocalyptic number.

22210000221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210000221220 is an abundant number, since it is smaller than the sum of its proper divisors (31172286319580).

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

22210000221220 is a wasteful number, since it uses less digits than its factorization.

22210000221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86417 (or 86415 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22210000221220 its reverse (2212200001222), we get a palindrome (24422200222442).

It can be divided in two parts, 222100002 and 21220, that added together give a palindrome (222121222).

The spelling of 22210000221220 in words is "twenty-two trillion, two hundred ten billion, two hundred twenty-one thousand, two hundred twenty".