1322221120120 has 64 divisors (see below), whose sum is σ = 3012783789600. Its totient is φ = 522188113920.

The previous prime is 1322221120097. The next prime is 1322221120127. The reversal of 1322221120120 is 210211222231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322221120127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191212 + ... + 2728708.

Almost surely, 2^{1322221120120} is an apocalyptic number.

1322221120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322221120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506391894800).

1322221120120 is an abundant number, since it is smaller than the sum of its proper divisors (1690562669480).

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

1322221120120 is a wasteful number, since it uses less digits than its factorization.

1322221120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538288 (or 538284 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1322221120120 its reverse (210211222231), we get a palindrome (1532432342351).

The spelling of 1322221120120 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty".