1110211121987 has 4 divisors (see below), whose sum is σ = 1211139405816. Its totient is φ = 1009282838160.

The previous prime is 1110211121977. The next prime is 1110211122017. The reversal of 1110211121987 is 7891211120111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1110211121987 - 2²⁶ = 1110144013123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110211121977) 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, 50464141898 + ... + 50464141919.

It is an arithmetic number, because the mean of its divisors is an integer number (302784851454).

Almost surely, 2^{1110211121987} is an apocalyptic number.

1110211121987 is a deficient number, since it is larger than the sum of its proper divisors (100928283829).

1110211121987 is a wasteful number, since it uses less digits than its factorization.

1110211121987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100928283828.

The product of its (nonzero) digits is 2016, while the sum is 35.

The spelling of 1110211121987 in words is "one trillion, one hundred ten billion, two hundred eleven million, one hundred twenty-one thousand, nine hundred eighty-seven".