11201010121001 has 4 divisors (see below), whose sum is σ = 11242649564100. Its totient is φ = 11159370677904.

The previous prime is 11201010120917. The next prime is 11201010121031. The reversal of 11201010121001 is 10012101010211.

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 2349337890025 + 8851672230976 = 1532755^2 + 2975176^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201010121001 - 2³⁴ = 11183830251817 is a prime.

It is a super-2 number, since 2×11201010121001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11201010121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20819721146 + ... + 20819721683.

It is an arithmetic number, because the mean of its divisors is an integer number (2810662391025).

Almost surely, 2^{11201010121001} is an apocalyptic number.

It is an amenable number.

11201010121001 is a deficient number, since it is larger than the sum of its proper divisors (41639443099).

11201010121001 is an equidigital number, since it uses as much as digits as its factorization.

11201010121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41639443098.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11201010121001 its reverse (10012101010211), we get a palindrome (21213111131212).

The spelling of 11201010121001 in words is "eleven trillion, two hundred one billion, ten million, one hundred twenty-one thousand, one".