420425212510221 has 8 divisors (see below), whose sum is σ = 561548678474784. Its totient is φ = 279792610776240.

The previous prime is 420425212510217. The next prime is 420425212510223. The reversal of 420425212510221 is 122015212524024.

It is a happy number.

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

It is not a de Polignac number, because 420425212510221 - 2² = 420425212510217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420425212510223) 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, 122716055646 + ... + 122716059071.

It is an arithmetic number, because the mean of its divisors is an integer number (70193584809348).

Almost surely, 2^{420425212510221} is an apocalyptic number.

It is an amenable number.

420425212510221 is a deficient number, since it is larger than the sum of its proper divisors (141123465964563).

420425212510221 is a wasteful number, since it uses less digits than its factorization.

420425212510221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245432115291.

The product of its (nonzero) digits is 25600, while the sum is 33.

The spelling of 420425212510221 in words is "four hundred twenty trillion, four hundred twenty-five billion, two hundred twelve million, five hundred ten thousand, two hundred twenty-one".