221021020082 has 8 divisors (see below), whose sum is σ = 332247582336. Its totient is φ = 110271825972.

The previous prime is 221021020081. The next prime is 221021020117. The reversal of 221021020082 is 280020120122.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (221021020081) 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, 119340878 + ... + 119342729.

It is an arithmetic number, because the mean of its divisors is an integer number (41530947792).

Almost surely, 2^221021020082 is an apocalyptic number.

221021020082 is a deficient number, since it is larger than the sum of its proper divisors (111226562254).

221021020082 is a wasteful number, since it uses less digits than its factorization.

221021020082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238684072.

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 221021020082 in words is "two hundred twenty-one billion, twenty-one million, twenty thousand, eighty-two".