2011201010101 has 4 divisors (see below), whose sum is σ = 2080552769100. Its totient is φ = 1941849251104.

The previous prime is 2011201010099. The next prime is 2011201010111. The reversal of 2011201010101 is 1010101021102.

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 339160640625 + 1672040369476 = 582375^2 + 1293074^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011201010101 - 2¹ = 2011201010099 is a prime.

It is a Duffinian number.

2011201010101 is a modest number, since divided by 1010101 gives 20112 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011201010111) 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, 34675879456 + ... + 34675879513.

It is an arithmetic number, because the mean of its divisors is an integer number (520138192275).

Almost surely, 2^{2011201010101} is an apocalyptic number.

It is an amenable number.

2011201010101 is a deficient number, since it is larger than the sum of its proper divisors (69351758999).

2011201010101 is an equidigital number, since it uses as much as digits as its factorization.

2011201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69351758998.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011201010101 its reverse (1010101021102), we get a palindrome (3021302031203).

The spelling of 2011201010101 in words is "two trillion, eleven billion, two hundred one million, ten thousand, one hundred one".