240021240000 has 140 divisors (see below), whose sum is σ = 793566621144. Its totient is φ = 64005632000.

The previous prime is 240021239987. The next prime is 240021240023. The reversal of 240021240000 is 42120042.

It is a super-2 number, since 2×240021240000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 880089 + ... + 1120088.

Almost surely, 2^240021240000 is an apocalyptic number.

240021240000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240021240000 is an abundant number, since it is smaller than the sum of its proper divisors (553545381144).

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

240021240000 is an equidigital number, since it uses as much as digits as its factorization.

240021240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000212 (or 2000187 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 240021240000 its reverse (42120042), we get a palindrome (240063360042).

The spelling of 240021240000 in words is "two hundred forty billion, twenty-one million, two hundred forty thousand".