2230121221985 has 4 divisors (see below), whose sum is σ = 2676145466388. Its totient is φ = 1784096977584.

The previous prime is 2230121221973. The next prime is 2230121222011. The reversal of 2230121221985 is 5891221210322.

2230121221985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515443587136 + 1714677634849 = 717944^2 + 1309457^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230121221985 - 2⁴ = 2230121221969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223012122194 + ... + 223012122203.

It is an arithmetic number, because the mean of its divisors is an integer number (669036366597).

Almost surely, 2^{2230121221985} is an apocalyptic number.

It is an amenable number.

2230121221985 is a deficient number, since it is larger than the sum of its proper divisors (446024244403).

2230121221985 is an equidigital number, since it uses as much as digits as its factorization.

2230121221985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446024244402.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 2230121221985 in words is "two trillion, two hundred thirty billion, one hundred twenty-one million, two hundred twenty-one thousand, nine hundred eighty-five".