222102211201211 has 4 divisors (see below), whose sum is σ = 242293321310424. Its totient is φ = 201911101092000.

The previous prime is 222102211201151. The next prime is 222102211201223. The reversal of 222102211201211 is 112102112201222.

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 222102211201211 - 2³⁸ = 221827333294267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222102211201111) 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, 10095555054590 + ... + 10095555054611.

It is an arithmetic number, because the mean of its divisors is an integer number (60573330327606).

Almost surely, 2^{222102211201211} is an apocalyptic number.

222102211201211 is a deficient number, since it is larger than the sum of its proper divisors (20191110109213).

222102211201211 is a wasteful number, since it uses less digits than its factorization.

222102211201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20191110109212.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222102211201211 its reverse (112102112201222), we get a palindrome (334204323402433).

It can be divided in two parts, 22210221 and 1201211, that added together give a palindrome (23411432).

The spelling of 222102211201211 in words is "two hundred twenty-two trillion, one hundred two billion, two hundred eleven million, two hundred one thousand, two hundred eleven".