21421330202014 has 16 divisors (see below), whose sum is σ = 32677704229680. Its totient is φ = 10528965941760.

The previous prime is 21421330202003. The next prime is 21421330202017. The reversal of 21421330202014 is 41020203312412.

It is a self number, because there is not a number n which added to its sum of digits gives 21421330202014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21421330202017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50742979 + ... + 51163390.

It is an arithmetic number, because the mean of its divisors is an integer number (2042356514355).

Almost surely, 2^{21421330202014} is an apocalyptic number.

21421330202014 is a deficient number, since it is larger than the sum of its proper divisors (11256374027666).

21421330202014 is a wasteful number, since it uses less digits than its factorization.

21421330202014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101908155.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21421330202014 its reverse (41020203312412), we get a palindrome (62441533514426).

The spelling of 21421330202014 in words is "twenty-one trillion, four hundred twenty-one billion, three hundred thirty million, two hundred two thousand, fourteen".