1221303012302 has 8 divisors (see below), whose sum is σ = 1834361819712. Its totient is φ = 609849072400.

The previous prime is 1221303012301. The next prime is 1221303012317. The reversal of 1221303012302 is 2032103031221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221303012301) 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, 401214974 + ... + 401218017.

It is an arithmetic number, because the mean of its divisors is an integer number (229295227464).

Almost surely, 2^{1221303012302} is an apocalyptic number.

1221303012302 is a deficient number, since it is larger than the sum of its proper divisors (613058807410).

1221303012302 is an equidigital number, since it uses as much as digits as its factorization.

1221303012302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802433754.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1221303012302 its reverse (2032103031221), we get a palindrome (3253406043523).

The spelling of 1221303012302 in words is "one trillion, two hundred twenty-one billion, three hundred three million, twelve thousand, three hundred two".