210011211011101 has 4 divisors (see below), whose sum is σ = 210534929742204. Its totient is φ = 209487492280000.

The previous prime is 210011211011093. The next prime is 210011211011153. The reversal of 210011211011101 is 101110112110012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151800018111225 + 58211192899876 = 12320715^2 + 7629626^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011211011101 - 2³ = 210011211011093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011211011501) 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, 261859364950 + ... + 261859365751.

It is an arithmetic number, because the mean of its divisors is an integer number (52633732435551).

Almost surely, 2^{210011211011101} is an apocalyptic number.

It is an amenable number.

210011211011101 is a deficient number, since it is larger than the sum of its proper divisors (523718731103).

210011211011101 is an equidigital number, since it uses as much as digits as its factorization.

210011211011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523718731102.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 210011211011101 its reverse (101110112110012), we get a palindrome (311121323121113).

The spelling of 210011211011101 in words is "two hundred ten trillion, eleven billion, two hundred eleven million, eleven thousand, one hundred one".