1302212001985 has 8 divisors (see below), whose sum is σ = 1566044111016. Its totient is φ = 1039509795840.

The previous prime is 1302212001971. The next prime is 1302212002019. The reversal of 1302212001985 is 5891002122031.

It can be written as a sum of positive squares in 4 ways, for example, as 1793353104 + 1300418648881 = 42348^2 + 1140359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1302212001985 - 2¹¹ = 1302211999937 is a prime.

It is a super-2 number, since 2×1302212001985² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1302212001985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282473184 + ... + 282477793.

It is an arithmetic number, because the mean of its divisors is an integer number (195755513877).

Almost surely, 2^{1302212001985} is an apocalyptic number.

It is an amenable number.

1302212001985 is a deficient number, since it is larger than the sum of its proper divisors (263832109031).

1302212001985 is an equidigital number, since it uses as much as digits as its factorization.

1302212001985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564951443.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 1302212001985 in words is "one trillion, three hundred two billion, two hundred twelve million, one thousand, nine hundred eighty-five".