1102211987 has 2 divisors, whose sum is σ = 1102211988. Its totient is φ = 1102211986.

The previous prime is 1102211977. The next prime is 1102212043. The reversal of 1102211987 is 7891122011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1102211987 - 2¹⁴ = 1102195603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1102211917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551105993 + 551105994.

It is an arithmetic number, because the mean of its divisors is an integer number (551105994).

Almost surely, 2^1102211987 is an apocalyptic number.

1102211987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102211987 is an equidigital number, since it uses as much as digits as its factorization.

1102211987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The square root of 1102211987 is about 33199.5781147894. The cubic root of 1102211987 is about 1032.9715885924.

Adding to 1102211987 its reverse (7891122011), we get a palindrome (8993333998).

The spelling of 1102211987 in words is "one billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-seven".