1111211111008 has 24 divisors (see below), whose sum is σ = 2209357246320. Its totient is φ = 550104508800.

The previous prime is 1111211110991. The next prime is 1111211111029. The reversal of 1111211111008 is 8001111121111.

It is a congruent number.

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, 171904428 + ... + 171910891.

It is an arithmetic number, because the mean of its divisors is an integer number (92056551930).

Almost surely, 2^{1111211111008} is an apocalyptic number.

It is an amenable number.

1111211111008 is a deficient number, since it is larger than the sum of its proper divisors (1098146135312).

1111211111008 is a wasteful number, since it uses less digits than its factorization.

1111211111008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343815430 (or 343815422 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 19.

Adding to 1111211111008 its reverse (8001111121111), we get a palindrome (9112322232119).

The spelling of 1111211111008 in words is "one trillion, one hundred eleven billion, two hundred eleven million, one hundred eleven thousand, eight".