221250212 has 12 divisors (see below), whose sum is σ = 407566320. Its totient is φ = 104802696.

The previous prime is 221250203. The next prime is 221250217. The reversal of 221250212 is 212052122.

It is not an unprimeable number, because it can be changed into a prime (221250217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455518 + ... + 1455669.

It is an arithmetic number, because the mean of its divisors is an integer number (33963860).

Almost surely, 2^221250212 is an apocalyptic number.

It is an amenable number.

221250212 is a deficient number, since it is larger than the sum of its proper divisors (186316108).

221250212 is a wasteful number, since it uses less digits than its factorization.

221250212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911210 (or 2911208 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 221250212 is about 14874.4819069439. The cubic root of 221250212 is about 604.8224436267.

The spelling of 221250212 in words is "two hundred twenty-one million, two hundred fifty thousand, two hundred twelve".