11120021221087 has 2 divisors, whose sum is σ = 11120021221088. Its totient is φ = 11120021221086.

The previous prime is 11120021221073. The next prime is 11120021221151. The reversal of 11120021221087 is 78012212002111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120021221087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120021281087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560010610543 + 5560010610544.

It is an arithmetic number, because the mean of its divisors is an integer number (5560010610544).

Almost surely, 2^{11120021221087} is an apocalyptic number.

11120021221087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120021221087 is an equidigital number, since it uses as much as digits as its factorization.

11120021221087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 11120021221087 its reverse (78012212002111), we get a palindrome (89132233223198).

The spelling of 11120021221087 in words is "eleven trillion, one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, eighty-seven".