11101220210987 has 2 divisors, whose sum is σ = 11101220210988. Its totient is φ = 11101220210986.

The previous prime is 11101220210933. The next prime is 11101220211023. The reversal of 11101220210987 is 78901202210111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101220210987 - 2¹² = 11101220206891 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101220210687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550610105493 + 5550610105494.

It is an arithmetic number, because the mean of its divisors is an integer number (5550610105494).

Almost surely, 2^{11101220210987} is an apocalyptic number.

11101220210987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101220210987 is an equidigital number, since it uses as much as digits as its factorization.

11101220210987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 11101220210987 in words is "eleven trillion, one hundred one billion, two hundred twenty million, two hundred ten thousand, nine hundred eighty-seven".