211012222 has 4 divisors (see below), whose sum is σ = 316518336. Its totient is φ = 105506110.

The previous prime is 211012201. The next prime is 211012247. The reversal of 211012222 is 222210112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52753054 + ... + 52753057.

It is an arithmetic number, because the mean of its divisors is an integer number (79129584).

Almost surely, 2^211012222 is an apocalyptic number.

211012222 is a deficient number, since it is larger than the sum of its proper divisors (105506114).

211012222 is a wasteful number, since it uses less digits than its factorization.

211012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105506113.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 211012222 is about 14526.2597388316. The cubic root of 211012222 is about 595.3456758382.

Adding to 211012222 its reverse (222210112), we get a palindrome (433222334).

The spelling of 211012222 in words is "two hundred eleven million, twelve thousand, two hundred twenty-two".