421355441212245 has 16 divisors (see below), whose sum is σ = 749076339933120. Its totient is φ = 224722901979792.

The previous prime is 421355441212219. The next prime is 421355441212247. The reversal of 421355441212245 is 542212144553124.

It is a happy number.

421355441212245 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 5 + 5 + 4 + 412 + 1 + 224 + 5 = 666.

It is not a de Polignac number, because 421355441212245 - 2⁵ = 421355441212213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 421355441212245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421355441212247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560575708059 + ... + 1560575708328.

It is an arithmetic number, because the mean of its divisors is an integer number (46817271245820).

Almost surely, 2^{421355441212245} is an apocalyptic number.

421355441212245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

421355441212245 is a deficient number, since it is larger than the sum of its proper divisors (327720898720875).

421355441212245 is a wasteful number, since it uses less digits than its factorization.

421355441212245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121151416401 (or 3121151416395 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

Adding to 421355441212245 its reverse (542212144553124), we get a palindrome (963567585765369).

The spelling of 421355441212245 in words is "four hundred twenty-one trillion, three hundred fifty-five billion, four hundred forty-one million, two hundred twelve thousand, two hundred forty-five".