1212301323202 has 4 divisors (see below), whose sum is σ = 1818451984806. Its totient is φ = 606150661600.

The previous prime is 1212301323179. The next prime is 1212301323223. The reversal of 1212301323202 is 2023231032121.

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

It can be written as a sum of positive squares in only one way, i.e., 880802897121 + 331498426081 = 938511^2 + 575759^2 .

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 as a sum of consecutive naturals, namely, 303075330799 + ... + 303075330802.

Almost surely, 2^{1212301323202} is an apocalyptic number.

1212301323202 is a deficient number, since it is larger than the sum of its proper divisors (606150661604).

1212301323202 is an equidigital number, since it uses as much as digits as its factorization.

1212301323202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606150661603.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212301323202 its reverse (2023231032121), we get a palindrome (3235532355323).

The spelling of 1212301323202 in words is "one trillion, two hundred twelve billion, three hundred one million, three hundred twenty-three thousand, two hundred two".