11021100012987 has 4 divisors (see below), whose sum is σ = 14694800017320. Its totient is φ = 7347400008656.

The previous prime is 11021100012953. The next prime is 11021100012997. The reversal of 11021100012987 is 78921000112011.

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 11021100012987 - 2³⁵ = 10986740274619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11021100012917) 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, 1836850002162 + ... + 1836850002167.

It is an arithmetic number, because the mean of its divisors is an integer number (3673700004330).

Almost surely, 2^{11021100012987} is an apocalyptic number.

11021100012987 is a deficient number, since it is larger than the sum of its proper divisors (3673700004333).

11021100012987 is an equidigital number, since it uses as much as digits as its factorization.

11021100012987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673700004332.

The product of its (nonzero) digits is 2016, while the sum is 33.

Adding to 11021100012987 its reverse (78921000112011), we get a palindrome (89942100124998).

The spelling of 11021100012987 in words is "eleven trillion, twenty-one billion, one hundred million, twelve thousand, nine hundred eighty-seven".