421102223441440 has 24 divisors (see below), whose sum is σ = 994854002880780. Its totient is φ = 168440889376512.

The previous prime is 421102223441381. The next prime is 421102223441467. The reversal of 421102223441440 is 44144322201124.

It can be written as a sum of positive squares in 2 ways, for example, as 419908457422224 + 1193766019216 = 20491668^2 + 1092596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 421102223441396 and 421102223441405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315944448095 + ... + 1315944448414.

Almost surely, 2^{421102223441440} is an apocalyptic number.

421102223441440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421102223441440 is an abundant number, since it is smaller than the sum of its proper divisors (573751779439340).

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

421102223441440 is a wasteful number, since it uses less digits than its factorization.

421102223441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631888896524 (or 2631888896516 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 421102223441440 its reverse (44144322201124), we get a palindrome (465246545642564).

The spelling of 421102223441440 in words is "four hundred twenty-one trillion, one hundred two billion, two hundred twenty-three million, four hundred forty-one thousand, four hundred forty".