2421221403512 has 32 divisors (see below), whose sum is σ = 4823387481600. Its totient is φ = 1136175702624.

The previous prime is 2421221403487. The next prime is 2421221403521. The reversal of 2421221403512 is 2153041221242.

2421221403512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74418728 + ... + 74451255.

It is an arithmetic number, because the mean of its divisors is an integer number (150730858800).

Almost surely, 2^{2421221403512} is an apocalyptic number.

It is an amenable number.

2421221403512 is a deficient number, since it is larger than the sum of its proper divisors (2402166078088).

2421221403512 is a wasteful number, since it uses less digits than its factorization.

2421221403512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148870115 (or 148870111 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 2421221403512 its reverse (2153041221242), we get a palindrome (4574262624754).

The spelling of 2421221403512 in words is "two trillion, four hundred twenty-one billion, two hundred twenty-one million, four hundred three thousand, five hundred twelve".