222140052 has 18 divisors (see below), whose sum is σ = 561520778. Its totient is φ = 74046672.

The previous prime is 222140047. The next prime is 222140059. The reversal of 222140052 is 250041222.

It can be written as a sum of positive squares in only one way, i.e., 218921616 + 3218436 = 14796^2 + 1794^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222140059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3085243 + ... + 3085314.

Almost surely, 2^222140052 is an apocalyptic number.

It is an amenable number.

222140052 is an abundant number, since it is smaller than the sum of its proper divisors (339380726).

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

222140052 is a wasteful number, since it uses less digits than its factorization.

222140052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170567 (or 6170562 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 222140052 is about 14904.3635221367. The cubic root of 222140052 is about 605.6321984722.

Adding to 222140052 its reverse (250041222), we get a palindrome (472181274).

The spelling of 222140052 in words is "two hundred twenty-two million, one hundred forty thousand, fifty-two".