21214026546514 has 4 divisors (see below), whose sum is σ = 31821039819774. Its totient is φ = 10607013273256.

The previous prime is 21214026546511. The next prime is 21214026546523. The reversal of 21214026546514 is 41564562041212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14847574095025 + 6366452451489 = 3853255^2 + 2523183^2 .

It is not an unprimeable number, because it can be changed into a prime (21214026546511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5303506636627 + ... + 5303506636630.

Almost surely, 2^{21214026546514} is an apocalyptic number.

21214026546514 is a deficient number, since it is larger than the sum of its proper divisors (10607013273260).

21214026546514 is a wasteful number, since it uses less digits than its factorization.

21214026546514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607013273259.

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 21214026546514 its reverse (41564562041212), we get a palindrome (62778588587726).

The spelling of 21214026546514 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred forty-six thousand, five hundred fourteen".