1122221110987 has 2 divisors, whose sum is σ = 1122221110988. Its totient is φ = 1122221110986.

The previous prime is 1122221110961. The next prime is 1122221111029. The reversal of 1122221110987 is 7890111222211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7890111222211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122221110987 - 2⁷ = 1122221110859 is a prime.

It is a super-2 number, since 2×1122221110987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1122221110957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561110555493 + 561110555494.

It is an arithmetic number, because the mean of its divisors is an integer number (561110555494).

Almost surely, 2^{1122221110987} is an apocalyptic number.

1122221110987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221110987 is an equidigital number, since it uses as much as digits as its factorization.

1122221110987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The spelling of 1122221110987 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, nine hundred eighty-seven".