212231122 has 4 divisors (see below), whose sum is σ = 318346686. Its totient is φ = 106115560.

The previous prime is 212231119. The next prime is 212231137. The reversal of 212231122 is 221132212.

It is a happy number.

212231122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 165868641 + 46362481 = 12879^2 + 6809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212231096 and 212231105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53057779 + ... + 53057782.

Almost surely, 2^212231122 is an apocalyptic number.

212231122 is a deficient number, since it is larger than the sum of its proper divisors (106115564).

212231122 is a wasteful number, since it uses less digits than its factorization.

212231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106115563.

The product of its digits is 96, while the sum is 16.

The square root of 212231122 is about 14568.1543786439. The cubic root of 212231122 is about 596.4898023831.

Adding to 212231122 its reverse (221132212), we get a palindrome (433363334).

The spelling of 212231122 in words is "two hundred twelve million, two hundred thirty-one thousand, one hundred twenty-two".