11111012101201 has 4 divisors (see below), whose sum is σ = 11113002970804. Its totient is φ = 11109021231600.

The previous prime is 11111012101187. The next prime is 11111012101219. The reversal of 11111012101201 is 10210121011111.

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 6835876931601 + 4275135169600 = 2614551^2 + 2067640^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111012101201 - 2¹³ = 11111012093009 is a prime.

It is a super-2 number, since 2×11111012101201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111012107201) 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, 995426430 + ... + 995437591.

It is an arithmetic number, because the mean of its divisors is an integer number (2778250742701).

Almost surely, 2^{11111012101201} is an apocalyptic number.

It is an amenable number.

11111012101201 is a deficient number, since it is larger than the sum of its proper divisors (1990869603).

11111012101201 is an equidigital number, since it uses as much as digits as its factorization.

11111012101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990869602.

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

Adding to 11111012101201 its reverse (10210121011111), we get a palindrome (21321133112312).

The spelling of 11111012101201 in words is "eleven trillion, one hundred eleven billion, twelve million, one hundred one thousand, two hundred one".