211210230 has 64 divisors (see below), whose sum is σ = 631991808. Its totient is φ = 43887360.

The previous prime is 211210217. The next prime is 211210249. The reversal of 211210230 is 32012112.

It is a super-2 number, since 2×211210230² = 89219522513305800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43407 + ... + 48026.

It is an arithmetic number, because the mean of its divisors is an integer number (9874872).

Almost surely, 2^211210230 is an apocalyptic number.

211210230 is an abundant number, since it is smaller than the sum of its proper divisors (420781578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211210230 is a wasteful number, since it uses less digits than its factorization.

211210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91461.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211210230 is about 14533.0736597597. The cubic root of 211210230 is about 595.5318362288.

Adding to 211210230 its reverse (32012112), we get a palindrome (243222342).

The spelling of 211210230 in words is "two hundred eleven million, two hundred ten thousand, two hundred thirty".