22222201201111 has 4 divisors (see below), whose sum is σ = 22695013992672. Its totient is φ = 21749388409552.

The previous prime is 22222201201097. The next prime is 22222201201117. The reversal of 22222201201111 is 11110210222222.

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 22222201201111 - 2⁹ = 22222201200599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222201201117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236406395710 + ... + 236406395803.

It is an arithmetic number, because the mean of its divisors is an integer number (5673753498168).

Almost surely, 2^{22222201201111} is an apocalyptic number.

22222201201111 is a deficient number, since it is larger than the sum of its proper divisors (472812791561).

22222201201111 is an equidigital number, since it uses as much as digits as its factorization.

22222201201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472812791560.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22222201201111 its reverse (11110210222222), we get a palindrome (33332411423333).

The spelling of 22222201201111 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred one million, two hundred one thousand, one hundred eleven".