201120020021101 has 4 divisors (see below), whose sum is σ = 201645137567232. Its totient is φ = 200594902474972.

The previous prime is 201120020021083. The next prime is 201120020021111. The reversal of 201120020021101 is 101120020021102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201120020021101 - 2¹⁷ = 201120019890029 is a prime.

It is a super-3 number, since 3×201120020021101³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120020021111) 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, 262558772491 + ... + 262558773256.

It is an arithmetic number, because the mean of its divisors is an integer number (50411284391808).

Almost surely, 2^{201120020021101} is an apocalyptic number.

It is an amenable number.

201120020021101 is a deficient number, since it is larger than the sum of its proper divisors (525117546131).

201120020021101 is an equidigital number, since it uses as much as digits as its factorization.

201120020021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525117546130.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201120020021101 its reverse (101120020021102), we get a palindrome (302240040042203).

Subtracting from 201120020021101 its reverse (101120020021102), we obtain a palindrome (99999999999999).

The spelling of 201120020021101 in words is "two hundred one trillion, one hundred twenty billion, twenty million, twenty-one thousand, one hundred one".