34212341221 has 4 divisors (see below), whose sum is σ = 34213257612. Its totient is φ = 34211424832.

The previous prime is 34212341213. The next prime is 34212341243. The reversal of 34212341221 is 12214321243.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23642445121 + 10569896100 = 153761^2 + 102810^2 .

It is a cyclic number.

It is not a de Polignac number, because 34212341221 - 2³ = 34212341213 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 (34212341021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399706 + ... + 477691.

It is an arithmetic number, because the mean of its divisors is an integer number (8553314403).

Almost surely, 2^34212341221 is an apocalyptic number.

It is an amenable number.

34212341221 is a deficient number, since it is larger than the sum of its proper divisors (916391).

34212341221 is an equidigital number, since it uses as much as digits as its factorization.

34212341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916390.

The product of its digits is 2304, while the sum is 25.

Adding to 34212341221 its reverse (12214321243), we get a palindrome (46426662464).

The spelling of 34212341221 in words is "thirty-four billion, two hundred twelve million, three hundred forty-one thousand, two hundred twenty-one".