221121021082 has 16 divisors (see below), whose sum is σ = 375995259360. Its totient is φ = 96684494832.

The previous prime is 221121021067. The next prime is 221121021083. The reversal of 221121021082 is 280120121122.

221121021082 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221121021083) 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, 223806208 + ... + 223807195.

It is an arithmetic number, because the mean of its divisors is an integer number (23499703710).

Almost surely, 2^221121021082 is an apocalyptic number.

221121021082 is a deficient number, since it is larger than the sum of its proper divisors (154874238278).

221121021082 is a wasteful number, since it uses less digits than its factorization.

221121021082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447613437.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 221121021082 in words is "two hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, eighty-two".