200221102102001 has 4 divisors (see below), whose sum is σ = 211998813990372. Its totient is φ = 188443390213632.

The previous prime is 200221102101959. The next prime is 200221102102039. The reversal of 200221102102001 is 100201201122002.

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 146337046090225 + 53884056011776 = 12096985^2 + 7340576^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221102102001 - 2³⁸ = 199946224195057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200221102102061) 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, 5888855944160 + ... + 5888855944193.

It is an arithmetic number, because the mean of its divisors is an integer number (52999703497593).

Almost surely, 2^{200221102102001} is an apocalyptic number.

It is an amenable number.

200221102102001 is a deficient number, since it is larger than the sum of its proper divisors (11777711888371).

200221102102001 is a wasteful number, since it uses less digits than its factorization.

200221102102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777711888370.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200221102102001 its reverse (100201201122002), we get a palindrome (300422303224003).

The spelling of 200221102102001 in words is "two hundred trillion, two hundred twenty-one billion, one hundred two million, one hundred two thousand, one".