1244200011245 has 8 divisors (see below), whose sum is σ = 1493296540440. Its totient is φ = 995188991040.

The previous prime is 1244200011239. The next prime is 1244200011251. The reversal of 1244200011245 is 5421100024421.

It is an interprime number because it is at equal distance from previous prime (1244200011239) and next prime (1244200011251).

It can be written as a sum of positive squares in 4 ways, for example, as 479236368361 + 764963642884 = 692269^2 + 874622^2 .

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

It is not a de Polignac number, because 1244200011245 - 2⁶ = 1244200011181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21345230 + ... + 21403439.

It is an arithmetic number, because the mean of its divisors is an integer number (186662067555).

Almost surely, 2^{1244200011245} is an apocalyptic number.

It is an amenable number.

1244200011245 is a deficient number, since it is larger than the sum of its proper divisors (249096529195).

1244200011245 is an equidigital number, since it uses as much as digits as its factorization.

1244200011245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42754495.

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

Adding to 1244200011245 its reverse (5421100024421), we get a palindrome (6665300035666).

The spelling of 1244200011245 in words is "one trillion, two hundred forty-four billion, two hundred million, eleven thousand, two hundred forty-five".