11012221011001 has 4 divisors (see below), whose sum is σ = 12585395441152. Its totient is φ = 9439046580852.

The previous prime is 11012221010963. The next prime is 11012221011007. The reversal of 11012221011001 is 10011012221011.

It is a happy number.

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 not a de Polignac number, because 11012221011001 - 2²¹ = 11012218913849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012221011007) 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, 786587215065 + ... + 786587215078.

It is an arithmetic number, because the mean of its divisors is an integer number (3146348860288).

Almost surely, 2^{11012221011001} is an apocalyptic number.

It is an amenable number.

11012221011001 is a deficient number, since it is larger than the sum of its proper divisors (1573174430151).

11012221011001 is an equidigital number, since it uses as much as digits as its factorization.

11012221011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573174430150.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11012221011001 its reverse (10011012221011), we get a palindrome (21023233232012).

The spelling of 11012221011001 in words is "eleven trillion, twelve billion, two hundred twenty-one million, eleven thousand, one".