212201122 has 16 divisors (see below), whose sum is σ = 364291200. Its totient is φ = 90813888.

The previous prime is 212201071. The next prime is 212201137. The reversal of 212201122 is 221102212.

It is a happy 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, 247 + ... + 20602.

It is an arithmetic number, because the mean of its divisors is an integer number (22768200).

Almost surely, 2^212201122 is an apocalyptic number.

212201122 is a deficient number, since it is larger than the sum of its proper divisors (152090078).

212201122 is a wasteful number, since it uses less digits than its factorization.

212201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21585.

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

The square root of 212201122 is about 14567.1246991299. The cubic root of 212201122 is about 596.4616953880.

Adding to 212201122 its reverse (221102212), we get a palindrome (433303334).

The spelling of 212201122 in words is "two hundred twelve million, two hundred one thousand, one hundred twenty-two".