1323220022120 has 32 divisors (see below), whose sum is σ = 3019178085120. Its totient is φ = 521833247040.

The previous prime is 1323220022087. The next prime is 1323220022203. The reversal of 1323220022120 is 212200223231.

It is a happy number.

It is a super-2 number, since 2×1323220022120² (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 junction number, because it is equal to n+sod(n) for n = 1323220022092 and 1323220022101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232958432 + ... + 232964111.

It is an arithmetic number, because the mean of its divisors is an integer number (94349315160).

Almost surely, 2^{1323220022120} is an apocalyptic number.

1323220022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323220022120 is an abundant number, since it is smaller than the sum of its proper divisors (1695958063000).

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

1323220022120 is a wasteful number, since it uses less digits than its factorization.

1323220022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465922625 (or 465922621 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1323220022120 its reverse (212200223231), we get a palindrome (1535420245351).

The spelling of 1323220022120 in words is "one trillion, three hundred twenty-three billion, two hundred twenty million, twenty-two thousand, one hundred twenty".