222120000221201 has 4 divisors (see below), whose sum is σ = 235185882587172. Its totient is φ = 209054117855232.

The previous prime is 222120000221131. The next prime is 222120000221237. The reversal of 222120000221201 is 102122000021222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109041128060176 + 113078872161025 = 10442276^2 + 10633855^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120000221201 - 2¹⁰ = 222120000220177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 13065882365953 = 222120000221201 / (2 + 2 + 2 + 1 + 2 + 0 + 0 + 0 + 0 + 2 + 2 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222120000221201.

It is not an unprimeable number, because it can be changed into a prime (222120000241201) 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, 6532941182960 + ... + 6532941182993.

It is an arithmetic number, because the mean of its divisors is an integer number (58796470646793).

Almost surely, 2^{222120000221201} is an apocalyptic number.

It is an amenable number.

222120000221201 is a deficient number, since it is larger than the sum of its proper divisors (13065882365971).

222120000221201 is a wasteful number, since it uses less digits than its factorization.

222120000221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065882365970.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222120000221201 its reverse (102122000021222), we get a palindrome (324242000242423).

The spelling of 222120000221201 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-one thousand, two hundred one".