212200556 has 24 divisors (see below), whose sum is σ = 374984064. Its totient is φ = 105068160.

The previous prime is 212200537. The next prime is 212200577. The reversal of 212200556 is 655002212.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

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, 207326 + ... + 208346.

It is an arithmetic number, because the mean of its divisors is an integer number (15624336).

Almost surely, 2^212200556 is an apocalyptic number.

It is an amenable number.

212200556 is a deficient number, since it is larger than the sum of its proper divisors (162783508).

212200556 is a wasteful number, since it uses less digits than its factorization.

212200556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 212200556 is about 14567.1052718102. The cubic root of 212200556 is about 596.4611650772.

Adding to 212200556 its reverse (655002212), we get a palindrome (867202768).

The spelling of 212200556 in words is "two hundred twelve million, two hundred thousand, five hundred fifty-six".