11001111111002 has 8 divisors (see below), whose sum is σ = 16502153012436. Its totient is φ = 5500393440192.

The previous prime is 11001111110999. The next prime is 11001111111127. The reversal of 11001111111002 is 20011111110011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10405727575681 + 595383535321 = 3225791^2 + 771611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11001111111002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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, 80972813 + ... + 81108560.

Almost surely, 2^{11001111111002} is an apocalyptic number.

11001111111002 is a deficient number, since it is larger than the sum of its proper divisors (5501041901434).

11001111111002 is a wasteful number, since it uses less digits than its factorization.

11001111111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162115312.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11001111111002 its reverse (20011111110011), we get a palindrome (31012222221013).

Subtracting 11001111111002 from its reverse (20011111110011), we obtain a palindrome (9009999999009).

The spelling of 11001111111002 in words is "eleven trillion, one billion, one hundred eleven million, one hundred eleven thousand, two".