21214301232301 has 4 divisors (see below), whose sum is σ = 21223211063004. Its totient is φ = 21205391401600.

The previous prime is 21214301232281. The next prime is 21214301232307. The reversal of 21214301232301 is 10323210341212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7145725576201 + 14068575656100 = 2673149^2 + 3750810^2 .

It is a cyclic number.

It is not a de Polignac number, because 21214301232301 - 2²³ = 21214292843693 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214301232307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4454911780 + ... + 4454916541.

It is an arithmetic number, because the mean of its divisors is an integer number (5305802765751).

Almost surely, 2^{21214301232301} is an apocalyptic number.

It is an amenable number.

21214301232301 is a deficient number, since it is larger than the sum of its proper divisors (8909830703).

21214301232301 is an equidigital number, since it uses as much as digits as its factorization.

21214301232301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8909830702.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21214301232301 its reverse (10323210341212), we get a palindrome (31537511573513).

The spelling of 21214301232301 in words is "twenty-one trillion, two hundred fourteen billion, three hundred one million, two hundred thirty-two thousand, three hundred one".