222222022211111 has 16 divisors (see below), whose sum is σ = 249722104203264. Its totient is φ = 196208597100384.

The previous prime is 222222022211107. The next prime is 222222022211201. The reversal of 222222022211111 is 111112220222222.

It is a cyclic number.

It is not a de Polignac number, because 222222022211111 - 2² = 222222022211107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222022211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77420960 + ... + 80239946.

It is an arithmetic number, because the mean of its divisors is an integer number (15607631512704).

Almost surely, 2^{222222022211111} is an apocalyptic number.

222222022211111 is a deficient number, since it is larger than the sum of its proper divisors (27500081992153).

222222022211111 is a wasteful number, since it uses less digits than its factorization.

222222022211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082670.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222222022211111 its reverse (111112220222222), we get a palindrome (333334242433333).

The spelling of 222222022211111 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty-two million, two hundred eleven thousand, one hundred eleven".