39221020221 has 8 divisors (see below), whose sum is σ = 52296042624. Its totient is φ = 26146672320.

The previous prime is 39221020211. The next prime is 39221020243. The reversal of 39221020221 is 12202012293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39221020221 - 2¹⁰ = 39221019197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39221020191 and 39221020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39221020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12220 + ... + 280341.

It is an arithmetic number, because the mean of its divisors is an integer number (6537005328).

Almost surely, 2^39221020221 is an apocalyptic number.

It is an amenable number.

39221020221 is a deficient number, since it is larger than the sum of its proper divisors (13075022403).

39221020221 is a wasteful number, since it uses less digits than its factorization.

39221020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337251.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 39221020221 in words is "thirty-nine billion, two hundred twenty-one million, twenty thousand, two hundred twenty-one".