34403034021221 has 4 divisors (see below), whose sum is σ = 35052147870732. Its totient is φ = 33753920171712.

The previous prime is 34403034021199. The next prime is 34403034021289. The reversal of 34403034021221 is 12212043030443.

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 11435313244996 + 22967720776225 = 3381614^2 + 4792465^2 .

It is a cyclic number.

It is not a de Polignac number, because 34403034021221 - 2¹⁴ = 34403034004837 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 (34403034024221) 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, 324556924676 + ... + 324556924781.

It is an arithmetic number, because the mean of its divisors is an integer number (8763036967683).

Almost surely, 2^{34403034021221} is an apocalyptic number.

It is an amenable number.

34403034021221 is a deficient number, since it is larger than the sum of its proper divisors (649113849511).

34403034021221 is an equidigital number, since it uses as much as digits as its factorization.

34403034021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649113849510.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 34403034021221 its reverse (12212043030443), we get a palindrome (46615077051664).

The spelling of 34403034021221 in words is "thirty-four trillion, four hundred three billion, thirty-four million, twenty-one thousand, two hundred twenty-one".