1252421532244 has 12 divisors (see below), whose sum is σ = 2233091222964. Its totient is φ = 614395468544.

The previous prime is 1252421532169. The next prime is 1252421532251. The reversal of 1252421532244 is 4422351242521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 874995609744 + 377425922500 = 935412^2 + 614350^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953824157 + ... + 2953824580.

It is an arithmetic number, because the mean of its divisors is an integer number (186090935247).

Almost surely, 2^{1252421532244} is an apocalyptic number.

It is an amenable number.

1252421532244 is a deficient number, since it is larger than the sum of its proper divisors (980669690720).

1252421532244 is a wasteful number, since it uses less digits than its factorization.

1252421532244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907648794 (or 5907648792 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

Adding to 1252421532244 its reverse (4422351242521), we get a palindrome (5674772774765).

The spelling of 1252421532244 in words is "one trillion, two hundred fifty-two billion, four hundred twenty-one million, five hundred thirty-two thousand, two hundred forty-four".