1241211801440 has 192 divisors, whose sum is σ = 3227818144320. Its totient is φ = 448230236160.

The previous prime is 1241211801409. The next prime is 1241211801443. The reversal of 1241211801440 is 441081121421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241211801443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24150170 + ... + 24201510.

It is an arithmetic number, because the mean of its divisors is an integer number (16811552835).

Almost surely, 2^{1241211801440} is an apocalyptic number.

1241211801440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241211801440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613909072160).

1241211801440 is an abundant number, since it is smaller than the sum of its proper divisors (1986606342880).

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

1241211801440 is a wasteful number, since it uses less digits than its factorization.

1241211801440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51625 (or 51617 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

Adding to 1241211801440 its reverse (441081121421), we get a palindrome (1682292922861).

The spelling of 1241211801440 in words is "one trillion, two hundred forty-one billion, two hundred eleven million, eight hundred one thousand, four hundred forty".