211214125 has 8 divisors (see below), whose sum is σ = 263595384. Its totient is φ = 168971200.

The previous prime is 211214111. The next prime is 211214161. The reversal of 211214125 is 521412112.

It can be written as a sum of positive squares in 4 ways, for example, as 1022121 + 210192004 = 1011^2 + 14498^2 .

It is not a de Polignac number, because 211214125 - 2²³ = 202825517 is a prime.

It is a super-2 number, since 2×211214125² = 89222813199031250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 844732 + ... + 844981.

It is an arithmetic number, because the mean of its divisors is an integer number (32949423).

Almost surely, 2^211214125 is an apocalyptic number.

211214125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211214125 is a deficient number, since it is larger than the sum of its proper divisors (52381259).

211214125 is an equidigital number, since it uses as much as digits as its factorization.

211214125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689728 (or 1689718 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 211214125 is about 14533.2076638298. The cubic root of 211214125 is about 595.5354970083.

Adding to 211214125 its reverse (521412112), we get a palindrome (732626237).

The spelling of 211214125 in words is "two hundred eleven million, two hundred fourteen thousand, one hundred twenty-five".