1222012133120 has 72 divisors (see below), whose sum is σ = 2929386324816. Its totient is φ = 488423211008.

The previous prime is 1222012133117. The next prime is 1222012133137. The reversal of 1222012133120 is 213312102221.

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 = 1222012133092 and 1222012133101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270184 + ... + 2014296.

It is an arithmetic number, because the mean of its divisors is an integer number (40685921178).

Almost surely, 2^{1222012133120} is an apocalyptic number.

1222012133120 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 1222012133120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464693162408).

1222012133120 is an abundant number, since it is smaller than the sum of its proper divisors (1707374191696).

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

1222012133120 is an equidigital number, since it uses as much as digits as its factorization.

1222012133120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745417 (or 745403 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1222012133120 its reverse (213312102221), we get a palindrome (1435324235341).

The spelling of 1222012133120 in words is "one trillion, two hundred twenty-two billion, twelve million, one hundred thirty-three thousand, one hundred twenty".