221100120221222 has 8 divisors (see below), whose sum is σ = 361800196725672. Its totient is φ = 100500054646000.

The previous prime is 221100120221179. The next prime is 221100120221329. The reversal of 221100120221222 is 222122021001122.

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 = 221100120221194 and 221100120221203.

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, 5025002732279 + ... + 5025002732322.

It is an arithmetic number, because the mean of its divisors is an integer number (45225024590709).

Almost surely, 2^{221100120221222} is an apocalyptic number.

221100120221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221100120221222 is a deficient number, since it is larger than the sum of its proper divisors (140700076504450).

221100120221222 is a wasteful number, since it uses less digits than its factorization.

221100120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050005464614.

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

Adding to 221100120221222 its reverse (222122021001122), we get a palindrome (443222141222344).

The spelling of 221100120221222 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".