34443031221 has 16 divisors (see below), whose sum is σ = 51210936000. Its totient is φ = 22879120464.

The previous prime is 34443031201. The next prime is 34443031229. The reversal of 34443031221 is 12213034443.

34443031221 is a `hidden beast` number, since 3 + 4 + 4 + 430 + 3 + 1 + 221 = 666.

34443031221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34443031221 - 2⁹ = 34443030709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34443031229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2295171 + ... + 2310128.

It is an arithmetic number, because the mean of its divisors is an integer number (3200683500).

Almost surely, 2^34443031221 is an apocalyptic number.

It is an amenable number.

34443031221 is a deficient number, since it is larger than the sum of its proper divisors (16767904779).

34443031221 is a wasteful number, since it uses less digits than its factorization.

34443031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605585 (or 4605579 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 34443031221 its reverse (12213034443), we get a palindrome (46656065664).

The spelling of 34443031221 in words is "thirty-four billion, four hundred forty-three million, thirty-one thousand, two hundred twenty-one".