200111100222222 has 192 divisors, whose sum is σ = 515426040729600. Its totient is φ = 54906214072320.

The previous prime is 200111100222203. The next prime is 200111100222233. The reversal of 200111100222222 is 222222001111002.

It is a happy number.

200111100222222 is a `hidden beast` number, since 200 + 1 + 11 + 10 + 0 + 222 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200111100222195 and 200111100222204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 471370929 + ... + 471795267.

It is an arithmetic number, because the mean of its divisors is an integer number (2684510628800).

Almost surely, 2^{200111100222222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200111100222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257713020364800).

200111100222222 is an abundant number, since it is smaller than the sum of its proper divisors (315314940507378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200111100222222 is a wasteful number, since it uses less digits than its factorization.

200111100222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425311 (or 425308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200111100222222 its reverse (222222001111002), we get a palindrome (422333101333224).

It can be divided in two parts, 2001111002 and 22222, that multiplied together give a palindrome (44468688686444).

The spelling of 200111100222222 in words is "two hundred trillion, one hundred eleven billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".