221100222022 has 8 divisors (see below), whose sum is σ = 339739365672. Its totient is φ = 107853766800.

The previous prime is 221100222019. The next prime is 221100222043. The reversal of 221100222022 is 220222001122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221100221987 and 221100222005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348172004 + ... + 1348172167.

It is an arithmetic number, because the mean of its divisors is an integer number (42467420709).

Almost surely, 2^221100222022 is an apocalyptic number.

221100222022 is a deficient number, since it is larger than the sum of its proper divisors (118639143650).

221100222022 is a wasteful number, since it uses less digits than its factorization.

221100222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696344214.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221100222022 its reverse (220222001122), we get a palindrome (441322223144).

The spelling of 221100222022 in words is "two hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, twenty-two".