11020012120001 has 4 divisors (see below), whose sum is σ = 11170971190212. Its totient is φ = 10869053049792.

The previous prime is 11020012119989. The next prime is 11020012120111. The reversal of 11020012120001 is 10002121002011.

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 7545739796401 + 3474272323600 = 2746951^2 + 1863940^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020012120001 - 2¹⁸ = 11020011857857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020012120501) 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, 75479534996 + ... + 75479535141.

It is an arithmetic number, because the mean of its divisors is an integer number (2792742797553).

Almost surely, 2^{11020012120001} is an apocalyptic number.

It is an amenable number.

11020012120001 is a deficient number, since it is larger than the sum of its proper divisors (150959070211).

11020012120001 is an equidigital number, since it uses as much as digits as its factorization.

11020012120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150959070210.

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

Adding to 11020012120001 its reverse (10002121002011), we get a palindrome (21022133122012).

The spelling of 11020012120001 in words is "eleven trillion, twenty billion, twelve million, one hundred twenty thousand, one".