1222520105532 has 96 divisors (see below), whose sum is σ = 3219647719680. Its totient is φ = 357633633280.

The previous prime is 1222520105519. The next prime is 1222520105537. The reversal of 1222520105532 is 2355010252221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222520105532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222520105537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31649743 + ... + 31688345.

It is an arithmetic number, because the mean of its divisors is an integer number (33537997080).

Almost surely, 2^{1222520105532} is an apocalyptic number.

1222520105532 is a gapful number since it is divisible by the number (12) 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 1222520105532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609823859840).

1222520105532 is an abundant number, since it is smaller than the sum of its proper divisors (1997127614148).

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

1222520105532 is a wasteful number, since it uses less digits than its factorization.

1222520105532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46923 (or 46921 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1222520105532 its reverse (2355010252221), we get a palindrome (3577530357753).

The spelling of 1222520105532 in words is "one trillion, two hundred twenty-two billion, five hundred twenty million, one hundred five thousand, five hundred thirty-two".