22222120001111 has 16 divisors (see below), whose sum is σ = 23078732113920. Its totient is φ = 21374270396640.

The previous prime is 22222120001093. The next prime is 22222120001209. The reversal of 22222120001111 is 11110002122222.

It is a de Polignac number, because none of the positive numbers 2^k-22222120001111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22222120001111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222120001611) 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, 50448005 + ... + 50886593.

It is an arithmetic number, because the mean of its divisors is an integer number (1442420757120).

Almost surely, 2^{22222120001111} is an apocalyptic number.

22222120001111 is a deficient number, since it is larger than the sum of its proper divisors (856612112809).

22222120001111 is a wasteful number, since it uses less digits than its factorization.

22222120001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448574.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22222120001111 its reverse (11110002122222), we get a palindrome (33332122123333).

The spelling of 22222120001111 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, one thousand, one hundred eleven".