1321301412220 has 12 divisors (see below), whose sum is σ = 2774732965704. Its totient is φ = 528520564880.

The previous prime is 1321301412199. The next prime is 1321301412241. The reversal of 1321301412220 is 222141031231.

It is an interprime number because it is at equal distance from previous prime (1321301412199) and next prime (1321301412241).

It is a junction number, because it is equal to n+sod(n) for n = 1321301412191 and 1321301412200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33032535286 + ... + 33032535325.

It is an arithmetic number, because the mean of its divisors is an integer number (231227747142).

Almost surely, 2^{1321301412220} is an apocalyptic number.

1321301412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321301412220 is an abundant number, since it is smaller than the sum of its proper divisors (1453431553484).

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

1321301412220 is a wasteful number, since it uses less digits than its factorization.

1321301412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66065070620 (or 66065070618 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1321301412220 its reverse (222141031231), we get a palindrome (1543442443451).

The spelling of 1321301412220 in words is "one trillion, three hundred twenty-one billion, three hundred one million, four hundred twelve thousand, two hundred twenty".