1244440200102 has 128 divisors (see below), whose sum is σ = 2908945612800. Its totient is φ = 351331881600.

The previous prime is 1244440200097. The next prime is 1244440200169. The reversal of 1244440200102 is 2010020444421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6289599 + ... + 6484437.

It is an arithmetic number, because the mean of its divisors is an integer number (22726137600).

Almost surely, 2^{1244440200102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244440200102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454472806400).

1244440200102 is an abundant number, since it is smaller than the sum of its proper divisors (1664505412698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244440200102 is a wasteful number, since it uses less digits than its factorization.

1244440200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195002.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1244440200102 its reverse (2010020444421), we get a palindrome (3254460644523).

The spelling of 1244440200102 in words is "one trillion, two hundred forty-four billion, four hundred forty million, two hundred thousand, one hundred two".