222101220222211 has 4 divisors (see below), whose sum is σ = 242292240242424. Its totient is φ = 201910200202000.

The previous prime is 222101220222137. The next prime is 222101220222221. The reversal of 222101220222211 is 112222022101222.

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

It is a cyclic number.

It is not a de Polignac number, because 222101220222211 - 2¹⁷ = 222101220091139 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222101220222221) 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, 10095510010090 + ... + 10095510010111.

It is an arithmetic number, because the mean of its divisors is an integer number (60573060060606).

Almost surely, 2^{222101220222211} is an apocalyptic number.

222101220222211 is a deficient number, since it is larger than the sum of its proper divisors (20191020020213).

222101220222211 is a wasteful number, since it uses less digits than its factorization.

222101220222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20191020020212.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222101220222211 its reverse (112222022101222), we get a palindrome (334323242323433).

The spelling of 222101220222211 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred eleven".