21514050012021 has 16 divisors (see below), whose sum is σ = 33840840572928. Its totient is φ = 11897170513200.

The previous prime is 21514050012019. The next prime is 21514050012031. The reversal of 21514050012021 is 12021005041512.

It is a happy number.

It is not a de Polignac number, because 21514050012021 - 2¹ = 21514050012019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21514050011982 and 21514050012000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514050012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16523847285 + ... + 16523848586.

It is an arithmetic number, because the mean of its divisors is an integer number (2115052535808).

Almost surely, 2^{21514050012021} is an apocalyptic number.

21514050012021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21514050012021 is a deficient number, since it is larger than the sum of its proper divisors (12326790560907).

21514050012021 is a wasteful number, since it uses less digits than its factorization.

21514050012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33047695912.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 21514050012021 its reverse (12021005041512), we get a palindrome (33535055053533).

The spelling of 21514050012021 in words is "twenty-one trillion, five hundred fourteen billion, fifty million, twelve thousand, twenty-one".