222222122221120 has 448 divisors, whose sum is σ = 627014842122240. Its totient is φ = 73409072947200.

The previous prime is 222222122221093. The next prime is 222222122221133. The reversal of 222222122221120 is 21122221222222.

222222122221120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19846571362 + ... + 19846582558.

Almost surely, 2^{222222122221120} is an apocalyptic number.

222222122221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222122221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313507421061120).

222222122221120 is an abundant number, since it is smaller than the sum of its proper divisors (404792719901120).

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

222222122221120 is a wasteful number, since it uses less digits than its factorization.

222222122221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482 (or 12472 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222222122221120 its reverse (21122221222222), we get a palindrome (243344343443342).

The spelling of 222222122221120 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".