1222110101987 has 2 divisors, whose sum is σ = 1222110101988. Its totient is φ = 1222110101986.

The previous prime is 1222110101981. The next prime is 1222110102007. The reversal of 1222110101987 is 7891010112221.

It is a weak prime.

It is an emirp because it is prime and its reverse (7891010112221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222110101987 - 2¹⁶ = 1222110036451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222110101981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611055050993 + 611055050994.

It is an arithmetic number, because the mean of its divisors is an integer number (611055050994).

Almost surely, 2^{1222110101987} is an apocalyptic number.

1222110101987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222110101987 is an equidigital number, since it uses as much as digits as its factorization.

1222110101987 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 1222110101987 in words is "one trillion, two hundred twenty-two billion, one hundred ten million, one hundred one thousand, nine hundred eighty-seven".