421021240202224 has 40 divisors (see below), whose sum is σ = 847084651112448. Its totient is φ = 202500074927040.

The previous prime is 421021240202209. The next prime is 421021240202231. The reversal of 421021240202224 is 422202042120124.

It is a junction number, because it is equal to n+sod(n) for n = 421021240202192 and 421021240202201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2541333772 + ... + 2541499435.

Almost surely, 2^{421021240202224} is an apocalyptic number.

It is an amenable number.

421021240202224 is an abundant number, since it is smaller than the sum of its proper divisors (426063410910224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421021240202224 is a wasteful number, since it uses less digits than its factorization.

421021240202224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082833413 (or 5082833407 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 421021240202224 its reverse (422202042120124), we get a palindrome (843223282322348).

The spelling of 421021240202224 in words is "four hundred twenty-one trillion, twenty-one billion, two hundred forty million, two hundred two thousand, two hundred twenty-four".