11012221002001 has 4 divisors (see below), whose sum is σ = 11013253763392. Its totient is φ = 11011188240612.

The previous prime is 11012221001921. The next prime is 11012221002037. The reversal of 11012221002001 is 10020012221011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11012221002001 - 2³³ = 11003631067409 is a prime.

It is a super-2 number, since 2×11012221002001² (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 (11012221002061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516364701 + ... + 516386026.

It is an arithmetic number, because the mean of its divisors is an integer number (2753313440848).

Almost surely, 2^{11012221002001} is an apocalyptic number.

It is an amenable number.

11012221002001 is a deficient number, since it is larger than the sum of its proper divisors (1032761391).

11012221002001 is a wasteful number, since it uses less digits than its factorization.

11012221002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032761390.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11012221002001 its reverse (10020012221011), we get a palindrome (21032233223012).

The spelling of 11012221002001 in words is "eleven trillion, twelve billion, two hundred twenty-one million, two thousand, one".