221021112002 has 8 divisors (see below), whose sum is σ = 331977877056. Its totient is φ = 110361819652.

The previous prime is 221021112001. The next prime is 221021112031. The reversal of 221021112002 is 200211120122.

221021112002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (221021112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74366318 + ... + 74369289.

It is an arithmetic number, because the mean of its divisors is an integer number (41497234632).

Almost surely, 2^221021112002 is an apocalyptic number.

221021112002 is a deficient number, since it is larger than the sum of its proper divisors (110956765054).

221021112002 is a wasteful number, since it uses less digits than its factorization.

221021112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148736352.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221021112002 its reverse (200211120122), we get a palindrome (421232232124).

The spelling of 221021112002 in words is "two hundred twenty-one billion, twenty-one million, one hundred twelve thousand, two".