11012021200001 has 4 divisors (see below), whose sum is σ = 11012363507412. Its totient is φ = 11011678892592.

The previous prime is 11012021199917. The next prime is 11012021200027. The reversal of 11012021200001 is 10000212021011.

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 5577532422400 + 5434488777601 = 2361680^2 + 2331199^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012021200001 - 2¹⁴ = 11012021183617 is a prime.

It is a super-2 number, since 2×11012021200001² (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 (11012021200801) 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, 171105446 + ... + 171169791.

It is an arithmetic number, because the mean of its divisors is an integer number (2753090876853).

Almost surely, 2^{11012021200001} is an apocalyptic number.

It is an amenable number.

11012021200001 is a deficient number, since it is larger than the sum of its proper divisors (342307411).

11012021200001 is an equidigital number, since it uses as much as digits as its factorization.

11012021200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342307410.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11012021200001 its reverse (10000212021011), we get a palindrome (21012233221012).

The spelling of 11012021200001 in words is "eleven trillion, twelve billion, twenty-one million, two hundred thousand, one".