1421124540000 has 480 divisors, whose sum is σ = 5135942972160. Its totient is φ = 341088000000.

The previous prime is 1421124539983. The next prime is 1421124540067. The reversal of 1421124540000 is 454211241.

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 (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 66649341 + ... + 66670659.

It is an arithmetic number, because the mean of its divisors is an integer number (10699881192).

Almost surely, 2^{1421124540000} is an apocalyptic number.

1421124540000 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 1421124540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567971486080).

1421124540000 is an abundant number, since it is smaller than the sum of its proper divisors (3714818432160).

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

1421124540000 is a wasteful number, since it uses less digits than its factorization.

1421124540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21464 (or 21441 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 1421124540000 its reverse (454211241), we get a palindrome (1421578751241).

The spelling of 1421124540000 in words is "one trillion, four hundred twenty-one billion, one hundred twenty-four million, five hundred forty thousand".