22222120011111 has 10 divisors (see below), whose sum is σ = 33196006436472. Its totient is φ = 14814746674020.

The previous prime is 22222120011061. The next prime is 22222120011127. The reversal of 22222120011111 is 11111002122222.

22222120011111 is a `hidden beast` number, since 222 + 221 + 200 + 1 + 11 + 11 = 666.

It is not a de Polignac number, because 22222120011111 - 2¹³ = 22222120002919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222120011181) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 137173580235 + ... + 137173580396.

Almost surely, 2^{22222120011111} is an apocalyptic number.

22222120011111 is a deficient number, since it is larger than the sum of its proper divisors (10973886425361).

22222120011111 is an equidigital number, since it uses as much as digits as its factorization.

22222120011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274347160643 (or 274347160634 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22222120011111 its reverse (11111002122222), we get a palindrome (33333122133333).

The spelling of 22222120011111 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, eleven thousand, one hundred eleven".