1322023212220 has 24 divisors (see below), whose sum is σ = 2792872996704. Its totient is φ = 525642760896.

The previous prime is 1322023212217. The next prime is 1322023212233. The reversal of 1322023212220 is 222123202231.

It is a junction number, because it is equal to n+sod(n) for n = 1322023212191 and 1322023212200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197904327 + ... + 197911006.

It is an arithmetic number, because the mean of its divisors is an integer number (116369708196).

Almost surely, 2^{1322023212220} is an apocalyptic number.

1322023212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322023212220 is an abundant number, since it is smaller than the sum of its proper divisors (1470849784484).

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

1322023212220 is a wasteful number, since it uses less digits than its factorization.

1322023212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395815509 (or 395815507 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1322023212220 its reverse (222123202231), we get a palindrome (1544146414451).

The spelling of 1322023212220 in words is "one trillion, three hundred twenty-two billion, twenty-three million, two hundred twelve thousand, two hundred twenty".