421351020222225 has 48 divisors (see below), whose sum is σ = 697752835752000. Its totient is φ = 224359804166400.

The previous prime is 421351020222203. The next prime is 421351020222311. The reversal of 421351020222225 is 522222020153124.

It is not a de Polignac number, because 421351020222225 - 2⁸ = 421351020221969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120567526 + ... + 124013024.

It is an arithmetic number, because the mean of its divisors is an integer number (14536517411500).

Almost surely, 2^{421351020222225} is an apocalyptic number.

It is an amenable number.

421351020222225 is a deficient number, since it is larger than the sum of its proper divisors (276401815529775).

421351020222225 is a wasteful number, since it uses less digits than its factorization.

421351020222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448130 (or 3448125 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 421351020222225 its reverse (522222020153124), we get a palindrome (943573040375349).

The spelling of 421351020222225 in words is "four hundred twenty-one trillion, three hundred fifty-one billion, twenty million, two hundred twenty-two thousand, two hundred twenty-five".