200101101021221 has 16 divisors (see below), whose sum is σ = 213760123200000. Its totient is φ = 186897433598400.

The previous prime is 200101101021187. The next prime is 200101101021259. The reversal of 200101101021221 is 122120101101002.

It is a de Polignac number, because none of the positive numbers 2^k-200101101021221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200101101021196 and 200101101021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200101101021271) 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, 40104971 + ... + 44817528.

It is an arithmetic number, because the mean of its divisors is an integer number (13360007700000).

Almost surely, 2^{200101101021221} is an apocalyptic number.

It is an amenable number.

200101101021221 is a deficient number, since it is larger than the sum of its proper divisors (13659022178779).

200101101021221 is a wasteful number, since it uses less digits than its factorization.

200101101021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84925180.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 200101101021221 its reverse (122120101101002), we get a palindrome (322221202122223).

The spelling of 200101101021221 in words is "two hundred trillion, one hundred one billion, one hundred one million, twenty-one thousand, two hundred twenty-one".