420210403114221 has 24 divisors (see below), whose sum is σ = 607714608776184. Its totient is φ = 279797057802240.

The previous prime is 420210403114213. The next prime is 420210403114231. The reversal of 420210403114221 is 122411304012024.

420210403114221 is a `hidden beast` number, since 4 + 2 + 0 + 21 + 0 + 403 + 1 + 14 + 221 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2186003648196 + 418024399466025 = 1478514^2 + 20445645^2 .

It is not a de Polignac number, because 420210403114221 - 2³ = 420210403114213 is a prime.

It is a super-2 number, since 2×420210403114221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420210403114231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19386361 + ... + 34874801.

It is an arithmetic number, because the mean of its divisors is an integer number (25321442032341).

Almost surely, 2^{420210403114221} is an apocalyptic number.

It is an amenable number.

420210403114221 is a deficient number, since it is larger than the sum of its proper divisors (187504205661963).

420210403114221 is a wasteful number, since it uses less digits than its factorization.

420210403114221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15492141 (or 15492138 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 420210403114221 its reverse (122411304012024), we get a palindrome (542621707126245).

The spelling of 420210403114221 in words is "four hundred twenty trillion, two hundred ten billion, four hundred three million, one hundred fourteen thousand, two hundred twenty-one".