11211111002002 has 16 divisors (see below), whose sum is σ = 16834976923032. Its totient is φ = 5599452340480.

The previous prime is 11211111001999. The next prime is 11211111002017. The reversal of 11211111002002 is 20020011111211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11162341138081 + 48769863921 = 3341009^2 + 220839^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128830218 + ... + 128917210.

Almost surely, 2^{11211111002002} is an apocalyptic number.

11211111002002 is a deficient number, since it is larger than the sum of its proper divisors (5623865921030).

11211111002002 is an equidigital number, since it uses as much as digits as its factorization.

11211111002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156413.

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

Adding to 11211111002002 its reverse (20020011111211), we get a palindrome (31231122113213).

The spelling of 11211111002002 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, two thousand, two".