34151232221 has 8 divisors (see below), whose sum is σ = 36359911224. Its totient is φ = 31964751360.

The previous prime is 34151232217. The next prime is 34151232257. The reversal of 34151232221 is 12223215143.

It can be written as a sum of positive squares in 4 ways, for example, as 1077808900 + 33073423321 = 32830^2 + 181861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34151232221 - 2² = 34151232217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34151232211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5546360 + ... + 5552513.

It is an arithmetic number, because the mean of its divisors is an integer number (4544988903).

Almost surely, 2^34151232221 is an apocalyptic number.

It is an amenable number.

34151232221 is a deficient number, since it is larger than the sum of its proper divisors (2208679003).

34151232221 is a wasteful number, since it uses less digits than its factorization.

34151232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099071.

The product of its digits is 2880, while the sum is 26.

Adding to 34151232221 its reverse (12223215143), we get a palindrome (46374447364).

The spelling of 34151232221 in words is "thirty-four billion, one hundred fifty-one million, two hundred thirty-two thousand, two hundred twenty-one".