222211111122011 has 16 divisors (see below), whose sum is σ = 244090641270240. Its totient is φ = 200616132837120.

The previous prime is 222211111121957. The next prime is 222211111122029. The reversal of 222211111122011 is 110221111112222.

It is a happy number.

It is not a de Polignac number, because 222211111122011 - 2¹⁸ = 222211110859867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211111122031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119036600 + ... + 120888933.

It is an arithmetic number, because the mean of its divisors is an integer number (15255665079390).

Almost surely, 2^{222211111122011} is an apocalyptic number.

222211111122011 is a deficient number, since it is larger than the sum of its proper divisors (21879530148229).

222211111122011 is a wasteful number, since it uses less digits than its factorization.

222211111122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239926126.

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

Adding to 222211111122011 its reverse (110221111112222), we get a palindrome (332432222234233).

The spelling of 222211111122011 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, eleven".