222211011211211 has 4 divisors (see below), whose sum is σ = 242412012230424. Its totient is φ = 202010010192000.

The previous prime is 222211011211171. The next prime is 222211011211229. The reversal of 222211011211211 is 112112110112222.

It is a happy number.

222211011211211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222211011211211 - 2¹⁰ = 222211011210187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211011217211) 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, 10100500509590 + ... + 10100500509611.

It is an arithmetic number, because the mean of its divisors is an integer number (60603003057606).

Almost surely, 2^{222211011211211} is an apocalyptic number.

222211011211211 is a deficient number, since it is larger than the sum of its proper divisors (20201001019213).

222211011211211 is a wasteful number, since it uses less digits than its factorization.

222211011211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201001019212.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 222211011211211 its reverse (112112110112222), we get a palindrome (334323121323433).

The spelling of 222211011211211 in words is "two hundred twenty-two trillion, two hundred eleven billion, eleven million, two hundred eleven thousand, two hundred eleven".