200221202100001 has 4 divisors (see below), whose sum is σ = 200262767643972. Its totient is φ = 200179636556032.

The previous prime is 200221202099969. The next prime is 200221202100053. The reversal of 200221202100001 is 100001202122002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102458446974976 + 97762755125025 = 10122176^2 + 9887505^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221202100001 - 2⁵ = 200221202099969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221202100061) 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, 20782764760 + ... + 20782774393.

It is an arithmetic number, because the mean of its divisors is an integer number (50065691910993).

Almost surely, 2^{200221202100001} is an apocalyptic number.

It is an amenable number.

200221202100001 is a deficient number, since it is larger than the sum of its proper divisors (41565543971).

200221202100001 is an equidigital number, since it uses as much as digits as its factorization.

200221202100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41565543970.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200221202100001 its reverse (100001202122002), we get a palindrome (300222404222003).

The spelling of 200221202100001 in words is "two hundred trillion, two hundred twenty-one billion, two hundred two million, one hundred thousand, one".