21514050121456 has 20 divisors (see below), whose sum is σ = 41684820696904. Its totient is φ = 10756677038400.

The previous prime is 21514050121429. The next prime is 21514050121457. The reversal of 21514050121456 is 65412105041512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514050121457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21241035 + ... + 22230826.

Almost surely, 2^{21514050121456} is an apocalyptic number.

It is an amenable number.

21514050121456 is a deficient number, since it is larger than the sum of its proper divisors (20170770575448).

21514050121456 is a wasteful number, since it uses less digits than its factorization.

21514050121456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43502800 (or 43502794 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 21514050121456 its reverse (65412105041512), we get a palindrome (86926155162968).

The spelling of 21514050121456 in words is "twenty-one trillion, five hundred fourteen billion, fifty million, one hundred twenty-one thousand, four hundred fifty-six".