212341122 has 64 divisors (see below), whose sum is σ = 548179200. Its totient is φ = 59667840.

The previous prime is 212341121. The next prime is 212341123. The reversal of 212341122 is 221143212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212341121) and next prime (212341123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212341095 and 212341104.

It is not an unprimeable number, because it can be changed into a prime (212341121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18454 + ... + 27662.

It is an arithmetic number, because the mean of its divisors is an integer number (8565300).

Almost surely, 2^212341122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212341122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274089600).

212341122 is an abundant number, since it is smaller than the sum of its proper divisors (335838078).

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

212341122 is a wasteful number, since it uses less digits than its factorization.

212341122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288 (or 9282 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 212341122 is about 14571.9292477009. The cubic root of 212341122 is about 596.5928387096.

Adding to 212341122 its reverse (221143212), we get a palindrome (433484334).

The spelling of 212341122 in words is "two hundred twelve million, three hundred forty-one thousand, one hundred twenty-two".