222303121020 has 216 divisors, whose sum is σ = 715417492608. Its totient is φ = 55816128000.

The previous prime is 222303120967. The next prime is 222303121021. The reversal of 222303121020 is 20121303222.

222303121020 is a `hidden beast` number, since 22 + 230 + 312 + 102 + 0 = 666.

222303121020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222303120984 and 222303121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222303121021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7624470 + ... + 7653570.

Almost surely, 2^222303121020 is an apocalyptic number.

222303121020 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 222303121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357708746304).

222303121020 is an abundant number, since it is smaller than the sum of its proper divisors (493114371588).

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

222303121020 is a wasteful number, since it uses less digits than its factorization.

222303121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29221 (or 29179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 222303121020 its reverse (20121303222), we get a palindrome (242424424242).

The spelling of 222303121020 in words is "two hundred twenty-two billion, three hundred three million, one hundred twenty-one thousand, twenty".