22222120202111 has 2 divisors, whose sum is σ = 22222120202112. Its totient is φ = 22222120202110.

The previous prime is 22222120202077. The next prime is 22222120202123. The reversal of 22222120202111 is 11120202122222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22222120202111 - 2⁶ = 22222120202047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22222120202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111060101055 + 11111060101056.

It is an arithmetic number, because the mean of its divisors is an integer number (11111060101056).

Almost surely, 2^{22222120202111} is an apocalyptic number.

22222120202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222120202111 is an equidigital number, since it uses as much as digits as its factorization.

22222120202111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22222120202111 its reverse (11120202122222), we get a palindrome (33342322324333).

The spelling of 22222120202111 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, two hundred two thousand, one hundred eleven".