200112221221001 has 4 divisors (see below), whose sum is σ = 200415881648400. Its totient is φ = 199808560793604.

The previous prime is 200112221220997. The next prime is 200112221221009. The reversal of 200112221221001 is 100122122211002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200112221221001 - 2² = 200112221220997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200112221221009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151830212711 + ... + 151830214028.

It is an arithmetic number, because the mean of its divisors is an integer number (50103970412100).

Almost surely, 2^{200112221221001} is an apocalyptic number.

It is an amenable number.

200112221221001 is a deficient number, since it is larger than the sum of its proper divisors (303660427399).

200112221221001 is an equidigital number, since it uses as much as digits as its factorization.

200112221221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303660427398.

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

Adding to 200112221221001 its reverse (100122122211002), we get a palindrome (300234343432003).

Subtracting from 200112221221001 its reverse (100122122211002), we obtain a palindrome (99990099009999).

The spelling of 200112221221001 in words is "two hundred trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, one".