222021352 has 48 divisors (see below), whose sum is σ = 485667360. Its totient is φ = 94874976.

The previous prime is 222021311. The next prime is 222021353. The reversal of 222021352 is 253120222.

It is not an unprimeable number, because it can be changed into a prime (222021353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190323 + ... + 191485.

It is an arithmetic number, because the mean of its divisors is an integer number (10118070).

Almost surely, 2^222021352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222021352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242833680).

222021352 is an abundant number, since it is smaller than the sum of its proper divisors (263646008).

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

222021352 is a wasteful number, since it uses less digits than its factorization.

222021352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 222021352 is about 14900.3809347278. The cubic root of 222021352 is about 605.5243065521.

Adding to 222021352 its reverse (253120222), we get a palindrome (475141574).

The spelling of 222021352 in words is "two hundred twenty-two million, twenty-one thousand, three hundred fifty-two".