1212201222301 has 4 divisors (see below), whose sum is σ = 1283507176572. Its totient is φ = 1140895268032.

The previous prime is 1212201222293. The next prime is 1212201222359. The reversal of 1212201222301 is 1032221022121.

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 544754705625 + 667446516676 = 738075^2 + 816974^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212201222301 - 2³ = 1212201222293 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 (1212201222361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35652977110 + ... + 35652977143.

It is an arithmetic number, because the mean of its divisors is an integer number (320876794143).

Almost surely, 2^{1212201222301} is an apocalyptic number.

It is an amenable number.

1212201222301 is a deficient number, since it is larger than the sum of its proper divisors (71305954271).

1212201222301 is an equidigital number, since it uses as much as digits as its factorization.

1212201222301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71305954270.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1212201222301 its reverse (1032221022121), we get a palindrome (2244422244422).

The spelling of 1212201222301 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred twenty-two thousand, three hundred one".