222202021120 has 144 divisors (see below), whose sum is σ = 556698868992. Its totient is φ = 84815216640.

The previous prime is 222202021117. The next prime is 222202021133. The reversal of 222202021120 is 21120202222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 222202021094 and 222202021103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12738805 + ... + 12756235.

It is an arithmetic number, because the mean of its divisors is an integer number (3865964368).

Almost surely, 2^222202021120 is an apocalyptic number.

222202021120 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 222202021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278349434496).

222202021120 is an abundant number, since it is smaller than the sum of its proper divisors (334496847872).

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

222202021120 is a wasteful number, since it uses less digits than its factorization.

222202021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17908 (or 17894 counting only the distinct ones).

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

Adding to 222202021120 its reverse (21120202222), we get a palindrome (243322223342).

The spelling of 222202021120 in words is "two hundred twenty-two billion, two hundred two million, twenty-one thousand, one hundred twenty".