1300021321220 has 24 divisors (see below), whose sum is σ = 2848742374464. Its totient is φ = 497399461856.

The previous prime is 1300021321201. The next prime is 1300021321237. The reversal of 1300021321220 is 221231200031.

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, 1413066194 + ... + 1413067113.

It is an arithmetic number, because the mean of its divisors is an integer number (118697598936).

Almost surely, 2^{1300021321220} is an apocalyptic number.

1300021321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300021321220 is an abundant number, since it is smaller than the sum of its proper divisors (1548721053244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1300021321220 is a wasteful number, since it uses less digits than its factorization.

1300021321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826133339 (or 2826133337 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1300021321220 its reverse (221231200031), we get a palindrome (1521252521251).

The spelling of 1300021321220 in words is "one trillion, three hundred billion, twenty-one million, three hundred twenty-one thousand, two hundred twenty".