34012221521 has 8 divisors (see below), whose sum is σ = 36017402184. Its totient is φ = 32007536640.

The previous prime is 34012221517. The next prime is 34012221527. The reversal of 34012221521 is 12512221043.

It can be written as a sum of positive squares in 4 ways, for example, as 23256250000 + 10755971521 = 152500^2 + 103711^2 .

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 34012221521 - 2² = 34012221517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34012221527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22241 + ... + 261761.

It is an arithmetic number, because the mean of its divisors is an integer number (4502175273).

Almost surely, 2^34012221521 is an apocalyptic number.

It is an amenable number.

34012221521 is a deficient number, since it is larger than the sum of its proper divisors (2005180663).

34012221521 is a wasteful number, since it uses less digits than its factorization.

34012221521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247891.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 34012221521 its reverse (12512221043), we get a palindrome (46524442564).

The spelling of 34012221521 in words is "thirty-four billion, twelve million, two hundred twenty-one thousand, five hundred twenty-one".