1212420021302 has 16 divisors (see below), whose sum is σ = 2122656330240. Its totient is φ = 508553078568.

The previous prime is 1212420021259. The next prime is 1212420021367. The reversal of 1212420021302 is 2031200242121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921291152 + ... + 921292467.

It is an arithmetic number, because the mean of its divisors is an integer number (132666020640).

Almost surely, 2^{1212420021302} is an apocalyptic number.

1212420021302 is a deficient number, since it is larger than the sum of its proper divisors (910236308938).

1212420021302 is a wasteful number, since it uses less digits than its factorization.

1212420021302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842583675.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1212420021302 its reverse (2031200242121), we get a palindrome (3243620263423).

The spelling of 1212420021302 in words is "one trillion, two hundred twelve billion, four hundred twenty million, twenty-one thousand, three hundred two".