1201102211987 has 4 divisors (see below), whose sum is σ = 1201105276896. Its totient is φ = 1201099147080.

The previous prime is 1201102211977. The next prime is 1201102211993. The reversal of 1201102211987 is 7891122011021.

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 1201102211987 - 2⁸ = 1201102211731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201102211927) 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, 840464 + ... + 1763117.

It is an arithmetic number, because the mean of its divisors is an integer number (300276319224).

Almost surely, 2^{1201102211987} is an apocalyptic number.

1201102211987 is a deficient number, since it is larger than the sum of its proper divisors (3064909).

1201102211987 is an equidigital number, since it uses as much as digits as its factorization.

1201102211987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064908.

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

The spelling of 1201102211987 in words is "one trillion, two hundred one billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-seven".