201101100120221 has 32 divisors (see below), whose sum is σ = 236476637139456. Its totient is φ = 167425961472000.

The previous prime is 201101100120197. The next prime is 201101100120257. The reversal of 201101100120221 is 122021001101102.

It is a de Polignac number, because none of the positive numbers 2^k-201101100120221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201101100120196 and 201101100120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101100120121) 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, 62354351 + ... + 65500131.

It is an arithmetic number, because the mean of its divisors is an integer number (7389894910608).

Almost surely, 2^{201101100120221} is an apocalyptic number.

It is an amenable number.

201101100120221 is a deficient number, since it is larger than the sum of its proper divisors (35375537019235).

201101100120221 is a wasteful number, since it uses less digits than its factorization.

201101100120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146813.

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

Adding to 201101100120221 its reverse (122021001101102), we get a palindrome (323122101221323).

The spelling of 201101100120221 in words is "two hundred one trillion, one hundred one billion, one hundred million, one hundred twenty thousand, two hundred twenty-one".