21420224122214 has 8 divisors (see below), whose sum is σ = 32138342758080. Its totient is φ = 10707443202856.

The previous prime is 21420224122159. The next prime is 21420224122217. The reversal of 21420224122214 is 41222142202412.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21420224122217) 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, 1334419094 + ... + 1334435145.

It is an arithmetic number, because the mean of its divisors is an integer number (4017292844760).

Almost surely, 2^{21420224122214} is an apocalyptic number.

21420224122214 is a deficient number, since it is larger than the sum of its proper divisors (10718118635866).

21420224122214 is a wasteful number, since it uses less digits than its factorization.

21420224122214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668858254.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 21420224122214 its reverse (41222142202412), we get a palindrome (62642366324626).

The spelling of 21420224122214 in words is "twenty-one trillion, four hundred twenty billion, two hundred twenty-four million, one hundred twenty-two thousand, two hundred fourteen".