200111221110021 has 8 divisors (see below), whose sum is σ = 287339189286240. Its totient is φ = 123145366836912.

The previous prime is 200111221110001. The next prime is 200111221110037. The reversal of 200111221110021 is 120011122111002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200111221110021 - 2⁹ = 200111221109509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111221110001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2565528475731 + ... + 2565528475808.

It is an arithmetic number, because the mean of its divisors is an integer number (35917398660780).

Almost surely, 2^{200111221110021} is an apocalyptic number.

It is an amenable number.

200111221110021 is a deficient number, since it is larger than the sum of its proper divisors (87227968176219).

200111221110021 is a wasteful number, since it uses less digits than its factorization.

200111221110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131056951555.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200111221110021 its reverse (120011122111002), we get a palindrome (320122343221023).

The spelling of 200111221110021 in words is "two hundred trillion, one hundred eleven billion, two hundred twenty-one million, one hundred ten thousand, twenty-one".