34420420221 has 32 divisors (see below), whose sum is σ = 51294974976. Its totient is φ = 20354880000.

The previous prime is 34420420201. The next prime is 34420420259. The reversal of 34420420221 is 12202402443.

It is not a de Polignac number, because 34420420221 - 2¹³ = 34420412029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34420420191 and 34420420200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34420420201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151546 + ... + 302996.

It is an arithmetic number, because the mean of its divisors is an integer number (1602967968).

Almost surely, 2^34420420221 is an apocalyptic number.

It is an amenable number.

34420420221 is a deficient number, since it is larger than the sum of its proper divisors (16874554755).

34420420221 is a wasteful number, since it uses less digits than its factorization.

34420420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151633.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 34420420221 its reverse (12202402443), we get a palindrome (46622822664).

The spelling of 34420420221 in words is "thirty-four billion, four hundred twenty million, four hundred twenty thousand, two hundred twenty-one".