1122201220999 has 4 divisors (see below), whose sum is σ = 1122265818064. Its totient is φ = 1122136623936.

The previous prime is 1122201220991. The next prime is 1122201221023. The reversal of 1122201220999 is 9990221022211.

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 1122201220999 - 2³ = 1122201220991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122201220991) 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, 32272467 + ... + 32307220.

It is an arithmetic number, because the mean of its divisors is an integer number (280566454516).

Almost surely, 2^{1122201220999} is an apocalyptic number.

1122201220999 is a deficient number, since it is larger than the sum of its proper divisors (64597065).

1122201220999 is an equidigital number, since it uses as much as digits as its factorization.

1122201220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64597064.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 1122201220999 in words is "one trillion, one hundred twenty-two billion, two hundred one million, two hundred twenty thousand, nine hundred ninety-nine".