2001222200111 has 2 divisors, whose sum is σ = 2001222200112. Its totient is φ = 2001222200110.

The previous prime is 2001222200101. The next prime is 2001222200137. The reversal of 2001222200111 is 1110022221002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001222200111 is a prime.

It is a super-2 number, since 2×2001222200111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001222200101) 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 as a sum of consecutive naturals, namely, 1000611100055 + 1000611100056.

It is an arithmetic number, because the mean of its divisors is an integer number (1000611100056).

Almost surely, 2^{2001222200111} is an apocalyptic number.

2001222200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001222200111 is an equidigital number, since it uses as much as digits as its factorization.

2001222200111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001222200111 its reverse (1110022221002), we get a palindrome (3111244421113).

The spelling of 2001222200111 in words is "two trillion, one billion, two hundred twenty-two million, two hundred thousand, one hundred eleven".