1252012402241 has 4 divisors (see below), whose sum is σ = 1264919746692. Its totient is φ = 1239105057792.

The previous prime is 1252012402237. The next prime is 1252012402247. The reversal of 1252012402241 is 1422042102521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 839468250625 + 412544151616 = 916225^2 + 642296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252012402241 - 2² = 1252012402237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252012402241.

It is not an unprimeable number, because it can be changed into a prime (1252012402247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6453672080 + ... + 6453672273.

It is an arithmetic number, because the mean of its divisors is an integer number (316229936673).

Almost surely, 2^{1252012402241} is an apocalyptic number.

It is an amenable number.

1252012402241 is a deficient number, since it is larger than the sum of its proper divisors (12907344451).

1252012402241 is an equidigital number, since it uses as much as digits as its factorization.

1252012402241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12907344450.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 1252012402241 its reverse (1422042102521), we get a palindrome (2674054504762).

The spelling of 1252012402241 in words is "one trillion, two hundred fifty-two billion, twelve million, four hundred two thousand, two hundred forty-one".