201110100021221 has 8 divisors (see below), whose sum is σ = 211931779964544. Its totient is φ = 190461566957200.

The previous prime is 201110100021211. The next prime is 201110100021247. The reversal of 201110100021221 is 122120001011102.

201110100021221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201110100021221 - 2³⁰ = 201109026279397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201110100021196 and 201110100021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110100021211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43286717441 + ... + 43286722086.

It is an arithmetic number, because the mean of its divisors is an integer number (26491472495568).

Almost surely, 2^{201110100021221} is an apocalyptic number.

It is an amenable number.

201110100021221 is a deficient number, since it is larger than the sum of its proper divisors (10821679943323).

201110100021221 is a wasteful number, since it uses less digits than its factorization.

201110100021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86573439651.

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

Adding to 201110100021221 its reverse (122120001011102), we get a palindrome (323230101032323).

The spelling of 201110100021221 in words is "two hundred one trillion, one hundred ten billion, one hundred million, twenty-one thousand, two hundred twenty-one".