200001222122111 has 16 divisors (see below), whose sum is σ = 210195722720448. Its totient is φ = 189936536697600.

The previous prime is 200001222122099. The next prime is 200001222122123. The reversal of 200001222122111 is 111221222100002.

It is an interprime number because it is at equal distance from previous prime (200001222122099) and next prime (200001222122123).

It is a de Polignac number, because none of the positive numbers 2^k-200001222122111 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 200001222122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001222124111) 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 in 15 ways as a sum of consecutive naturals, for example, 54068180 + ... + 57648681.

It is an arithmetic number, because the mean of its divisors is an integer number (13137232670028).

Almost surely, 2^{200001222122111} is an apocalyptic number.

200001222122111 is a deficient number, since it is larger than the sum of its proper divisors (10194500598337).

200001222122111 is a wasteful number, since it uses less digits than its factorization.

200001222122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111717442.

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

Adding to 200001222122111 its reverse (111221222100002), we get a palindrome (311222444222113).

The spelling of 200001222122111 in words is "two hundred trillion, one billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".