1321112221230 has 64 divisors (see below), whose sum is σ = 3339414835200. Its totient is φ = 333567849600.

The previous prime is 1321112221213. The next prime is 1321112221241. The reversal of 1321112221230 is 321222111231.

It is a junction number, because it is equal to n+sod(n) for n = 1321112221197 and 1321112221206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371955 + ... + 1667505.

It is an arithmetic number, because the mean of its divisors is an integer number (52178356800).

Almost surely, 2^{1321112221230} is an apocalyptic number.

1321112221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321112221230 is an abundant number, since it is smaller than the sum of its proper divisors (2018302613970).

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

1321112221230 is a wasteful number, since it uses less digits than its factorization.

1321112221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297369.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1321112221230 its reverse (321222111231), we get a palindrome (1642334332461).

The spelling of 1321112221230 in words is "one trillion, three hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred thirty".