21214026550013 has 8 divisors (see below), whose sum is σ = 23940594226080. Its totient is φ = 18620462175280.

The previous prime is 21214026549979. The next prime is 21214026550033. The reversal of 21214026550013 is 31005562041212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21214026550013 - 2⁶ = 21214026549949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214026550033) 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, 33250824995 + ... + 33250825632.

It is an arithmetic number, because the mean of its divisors is an integer number (2992574278260).

Almost surely, 2^{21214026550013} is an apocalyptic number.

It is an amenable number.

21214026550013 is a deficient number, since it is larger than the sum of its proper divisors (2726567676067).

21214026550013 is a wasteful number, since it uses less digits than its factorization.

21214026550013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66501650667.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 21214026550013 its reverse (31005562041212), we get a palindrome (52219588591225).

The spelling of 21214026550013 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred fifty thousand, thirteen".