1245110899200 has 480 divisors, whose sum is σ = 4977270612864. Its totient is φ = 267854807040.

The previous prime is 1245110899177. The next prime is 1245110899223. The reversal of 1245110899200 is 29980115421.

It is an interprime number because it is at equal distance from previous prime (1245110899177) and next prime (1245110899223).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4433362 + ... + 4705838.

Almost surely, 2^{1245110899200} is an apocalyptic number.

1245110899200 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 1245110899200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2488635306432).

1245110899200 is an abundant number, since it is smaller than the sum of its proper divisors (3732159713664).

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

1245110899200 is a wasteful number, since it uses less digits than its factorization.

1245110899200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272532 (or 272511 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 1245110899200 in words is "one trillion, two hundred forty-five billion, one hundred ten million, eight hundred ninety-nine thousand, two hundred".