222500212 has 12 divisors (see below), whose sum is σ = 424773216. Its totient is φ = 101136440.

The previous prime is 222500207. The next prime is 222500221. The reversal of 222500212 is 212005222.

It is a super-3 number, since 3×222500212³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528368 + ... + 2528455.

It is an arithmetic number, because the mean of its divisors is an integer number (35397768).

Almost surely, 2^222500212 is an apocalyptic number.

222500212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222500212 is a deficient number, since it is larger than the sum of its proper divisors (202273004).

222500212 is a wasteful number, since it uses less digits than its factorization.

222500212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056838 (or 5056836 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 222500212 is about 14916.4409964308. The cubic root of 222500212 is about 605.9593295074.

Adding to 222500212 its reverse (212005222), we get a palindrome (434505434).

The spelling of 222500212 in words is "two hundred twenty-two million, five hundred thousand, two hundred twelve".