221002021021222 has 32 divisors (see below), whose sum is σ = 386923036631040. Its totient is φ = 92699560879200.

The previous prime is 221002021021219. The next prime is 221002021021337. The reversal of 221002021021222 is 222120120200122.

It is a self number, because there is not a number n which added to its sum of digits gives 221002021021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213267979 + ... + 214301737.

It is an arithmetic number, because the mean of its divisors is an integer number (12091344894720).

Almost surely, 2^{221002021021222} is an apocalyptic number.

221002021021222 is a deficient number, since it is larger than the sum of its proper divisors (165921015609818).

221002021021222 is a wasteful number, since it uses less digits than its factorization.

221002021021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358716.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221002021021222 its reverse (222120120200122), we get a palindrome (443122141221344).

The spelling of 221002021021222 in words is "two hundred twenty-one trillion, two billion, twenty-one million, twenty-one thousand, two hundred twenty-two".