1322031223100 has 72 divisors (see below), whose sum is σ = 3327572438400. Its totient is φ = 446502640320.

The previous prime is 1322031223069. The next prime is 1322031223141. The reversal of 1322031223100 is 13221302231.

It is a super-2 number, since 2×1322031223100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14047250 + ... + 14141049.

Almost surely, 2^{1322031223100} is an apocalyptic number.

1322031223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322031223100 is an abundant number, since it is smaller than the sum of its proper divisors (2005541215300).

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

1322031223100 is a wasteful number, since it uses less digits than its factorization.

1322031223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28188387 (or 28188380 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1322031223100 its reverse (13221302231), we get a palindrome (1335252525331).

The spelling of 1322031223100 in words is "one trillion, three hundred twenty-two billion, thirty-one million, two hundred twenty-three thousand, one hundred".