2421221021344 has 24 divisors (see below), whose sum is σ = 4770128784960. Its totient is φ = 1209759742656.

The previous prime is 2421221021339. The next prime is 2421221021399. The reversal of 2421221021344 is 4431201221242.

It is a super-2 number, since 2×2421221021344² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26540254 + ... + 26631325.

It is an arithmetic number, because the mean of its divisors is an integer number (198755366040).

Almost surely, 2^{2421221021344} is an apocalyptic number.

It is an amenable number.

2421221021344 is a deficient number, since it is larger than the sum of its proper divisors (2348907763616).

2421221021344 is a wasteful number, since it uses less digits than its factorization.

2421221021344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53173012 (or 53173004 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 2421221021344 its reverse (4431201221242), we get a palindrome (6852422242586).

The spelling of 2421221021344 in words is "two trillion, four hundred twenty-one billion, two hundred twenty-one million, twenty-one thousand, three hundred forty-four".