34020530221 has 4 divisors (see below), whose sum is σ = 34094009152. Its totient is φ = 33947051292.

The previous prime is 34020530213. The next prime is 34020530227. The reversal of 34020530221 is 12203502043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12203502043 = 1327 ⋅9196309.

It is a cyclic number.

It is not a de Polignac number, because 34020530221 - 2³ = 34020530213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34020530192 and 34020530201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020530227) 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, 36738771 + ... + 36739696.

It is an arithmetic number, because the mean of its divisors is an integer number (8523502288).

Almost surely, 2^34020530221 is an apocalyptic number.

It is an amenable number.

34020530221 is a deficient number, since it is larger than the sum of its proper divisors (73478931).

34020530221 is an equidigital number, since it uses as much as digits as its factorization.

34020530221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73478930.

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 34020530221 in words is "thirty-four billion, twenty million, five hundred thirty thousand, two hundred twenty-one".