222222011211 has 24 divisors (see below), whose sum is σ = 331762523664. Its totient is φ = 143225858880.

The previous prime is 222222011189. The next prime is 222222011237. The reversal of 222222011211 is 112110222222.

It is a happy number.

222222011211 is a `hidden beast` number, since 2 + 222 + 220 + 11 + 211 = 666.

It is not a de Polignac number, because 222222011211 - 2¹³ = 222222003019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222222011281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2072985 + ... + 2177546.

It is an arithmetic number, because the mean of its divisors is an integer number (13823438486).

Almost surely, 2^222222011211 is an apocalyptic number.

222222011211 is a deficient number, since it is larger than the sum of its proper divisors (109540512453).

222222011211 is a wasteful number, since it uses less digits than its factorization.

222222011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250731 (or 4250728 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222222011211 its reverse (112110222222), we get a palindrome (334332233433).

It can be divided in two parts, 222222011 and 211, that added together give a palindrome (222222222).

The spelling of 222222011211 in words is "two hundred twenty-two billion, two hundred twenty-two million, eleven thousand, two hundred eleven".