211152250 has 16 divisors (see below), whose sum is σ = 395277480. Its totient is φ = 84460800.

The previous prime is 211152241. The next prime is 211152251. The reversal of 211152250 is 52251112.

It can be written as a sum of positive squares in 4 ways, for example, as 97239321 + 113912929 = 9861^2 + 10673^2 .

It is not an unprimeable number, because it can be changed into a prime (211152251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422055 + ... + 422554.

Almost surely, 2^211152250 is an apocalyptic number.

211152250 is a deficient number, since it is larger than the sum of its proper divisors (184125230).

211152250 is an equidigital number, since it uses as much as digits as its factorization.

211152250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844626 (or 844616 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 211152250 is about 14531.0787624319. The cubic root of 211152250 is about 595.4773374546.

The spelling of 211152250 in words is "two hundred eleven million, one hundred fifty-two thousand, two hundred fifty".