2421321440100 has 144 divisors (see below), whose sum is σ = 7144855408320. Its totient is φ = 632931724800.

The previous prime is 2421321440071. The next prime is 2421321440107. The reversal of 2421321440100 is 10441231242.

It is not an unprimeable number, because it can be changed into a prime (2421321440107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5136111 + ... + 5587689.

Almost surely, 2^{2421321440100} is an apocalyptic number.

2421321440100 is a gapful number since it is divisible by the number (20) 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 2421321440100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3572427704160).

2421321440100 is an abundant number, since it is smaller than the sum of its proper divisors (4723533968220).

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

2421321440100 is a wasteful number, since it uses less digits than its factorization.

2421321440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451950 (or 451943 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2421321440100 its reverse (10441231242), we get a palindrome (2431762671342).

The spelling of 2421321440100 in words is "two trillion, four hundred twenty-one billion, three hundred twenty-one million, four hundred forty thousand, one hundred".