212222341 has 4 divisors (see below), whose sum is σ = 212251500. Its totient is φ = 212193184.

The previous prime is 212222321. The next prime is 212222371. The reversal of 212222341 is 143222212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 158508100 + 53714241 = 12590^2 + 7329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6435 + ... + 21583.

It is an arithmetic number, because the mean of its divisors is an integer number (53062875).

Almost surely, 2^212222341 is an apocalyptic number.

It is an amenable number.

212222341 is a deficient number, since it is larger than the sum of its proper divisors (29159).

212222341 is a wasteful number, since it uses less digits than its factorization.

212222341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29158.

The product of its digits is 384, while the sum is 19.

The square root of 212222341 is about 14567.8529989838. The cubic root of 212222341 is about 596.4815757398.

Adding to 212222341 its reverse (143222212), we get a palindrome (355444553).

The spelling of 212222341 in words is "two hundred twelve million, two hundred twenty-two thousand, three hundred forty-one".