252220222 has 16 divisors (see below), whose sum is σ = 382279680. Its totient is φ = 124798968.

The previous prime is 252220217. The next prime is 252220249. The reversal of 252220222 is 222022252.

252220222 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252220222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122679 + ... + 124717.

It is an arithmetic number, because the mean of its divisors is an integer number (23892480).

Almost surely, 2^252220222 is an apocalyptic number.

252220222 is a deficient number, since it is larger than the sum of its proper divisors (130059458).

252220222 is a wasteful number, since it uses less digits than its factorization.

252220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 252220222 is about 15881.4426926523. The cubic root of 252220222 is about 631.8199010808.

Adding to 252220222 its reverse (222022252), we get a palindrome (474242474).

The spelling of 252220222 in words is "two hundred fifty-two million, two hundred twenty thousand, two hundred twenty-two".