1224252524221 has 8 divisors (see below), whose sum is σ = 1236510763488. Its totient is φ = 1211996970000.

The previous prime is 1224252524219. The next prime is 1224252524267.

1224252524221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224252524221 - 2¹ = 1224252524219 is a prime.

It is a super-2 number, since 2×1224252524221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224252521221) 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 7 ways as a sum of consecutive naturals, for example, 251526 + ... + 1584856.

It is an arithmetic number, because the mean of its divisors is an integer number (154563845436).

Almost surely, 2^{1224252524221} is an apocalyptic number.

It is an amenable number.

1224252524221 is a deficient number, since it is larger than the sum of its proper divisors (12258239267).

1224252524221 is a wasteful number, since it uses less digits than its factorization.

1224252524221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342523.

The product of its digits is 51200, while the sum is 34.

The spelling of 1224252524221 in words is "one trillion, two hundred twenty-four billion, two hundred fifty-two million, five hundred twenty-four thousand, two hundred twenty-one".