201200110101221 has 32 divisors (see below), whose sum is σ = 251451980881920. Its totient is φ = 156401144222400.

The previous prime is 201200110101217. The next prime is 201200110101251. The reversal of 201200110101221 is 122101011002102.

It is not a de Polignac number, because 201200110101221 - 2² = 201200110101217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201200110101196 and 201200110101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200110101251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2270657900 + ... + 2270746506.

It is an arithmetic number, because the mean of its divisors is an integer number (7857874402560).

Almost surely, 2^{201200110101221} is an apocalyptic number.

It is an amenable number.

201200110101221 is a deficient number, since it is larger than the sum of its proper divisors (50251870780699).

201200110101221 is a wasteful number, since it uses less digits than its factorization.

201200110101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159425.

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

Adding to 201200110101221 its reverse (122101011002102), we get a palindrome (323301121103323).

The spelling of 201200110101221 in words is "two hundred one trillion, two hundred billion, one hundred ten million, one hundred one thousand, two hundred twenty-one".