200111101001 has 16 divisors (see below), whose sum is σ = 234631060608. Its totient is φ = 167086972800.

The previous prime is 200111100979. The next prime is 200111101039. The reversal of 200111101001 is 100101111002.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200111101001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200111101001.

It is not an unprimeable number, because it can be changed into a prime (200111101901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337715 + ... + 717128.

It is an arithmetic number, because the mean of its divisors is an integer number (14664441288).

Almost surely, 2^200111101001 is an apocalyptic number.

It is an amenable number.

200111101001 is a deficient number, since it is larger than the sum of its proper divisors (34519959607).

200111101001 is a wasteful number, since it uses less digits than its factorization.

200111101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055552.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 200111101001 its reverse (100101111002), we get a palindrome (300212212003).

The spelling of 200111101001 in words is "two hundred billion, one hundred eleven million, one hundred one thousand, one".