211122230 has 16 divisors (see below), whose sum is σ = 414567504. Its totient is φ = 76771680.

The previous prime is 211122211. The next prime is 211122251. The reversal of 211122230 is 32221112.

It is a happy number.

211122230 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×211122230³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

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, 959537 + ... + 959756.

It is an arithmetic number, because the mean of its divisors is an integer number (25910469).

Almost surely, 2^211122230 is an apocalyptic number.

211122230 is a deficient number, since it is larger than the sum of its proper divisors (203445274).

211122230 is a wasteful number, since it uses less digits than its factorization.

211122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919311.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211122230 is about 14530.0457673058. The cubic root of 211122230 is about 595.4491159906.

Adding to 211122230 its reverse (32221112), we get a palindrome (243343342).

The spelling of 211122230 in words is "two hundred eleven million, one hundred twenty-two thousand, two hundred thirty".