1322221220325 has 36 divisors (see below), whose sum is σ = 2368363610340. Its totient is φ = 705149368320.

The previous prime is 1322221220321. The next prime is 1322221220339. The reversal of 1322221220325 is 5230221222231.

1322221220325 is a `hidden beast` number, since 1 + 3 + 222 + 212 + 203 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 144948479841 + 1177272740484 = 380721^2 + 1085022^2 .

It is not a de Polignac number, because 1322221220325 - 2² = 1322221220321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322221220321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4716799 + ... + 4989251.

It is an arithmetic number, because the mean of its divisors is an integer number (65787878065).

Almost surely, 2^{1322221220325} is an apocalyptic number.

1322221220325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1322221220325 is a deficient number, since it is larger than the sum of its proper divisors (1046142390015).

1322221220325 is a wasteful number, since it uses less digits than its factorization.

1322221220325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294038 (or 294030 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1322221220325 its reverse (5230221222231), we get a palindrome (6552442442556).

The spelling of 1322221220325 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, three hundred twenty-five".