1424011221 has 48 divisors (see below), whose sum is σ = 2241046080. Its totient is φ = 868320000.

The previous prime is 1424011201. The next prime is 1424011223. The reversal of 1424011221 is 1221104241.

1424011221 is a `hidden beast` number, since 1 + 42 + 401 + 1 + 221 = 666.

It is not a de Polignac number, because 1424011221 - 2¹¹ = 1424009173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1424011194 and 1424011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424011223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 707106 + ... + 709116.

It is an arithmetic number, because the mean of its divisors is an integer number (46688460).

Almost surely, 2^1424011221 is an apocalyptic number.

It is an amenable number.

1424011221 is a deficient number, since it is larger than the sum of its proper divisors (817034859).

1424011221 is a wasteful number, since it uses less digits than its factorization.

1424011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1424011221 is about 37736.0732058862. The cubic root of 1424011221 is about 1125.0482207479.

Adding to 1424011221 its reverse (1221104241), we get a palindrome (2645115462).

The spelling of 1424011221 in words is "one billion, four hundred twenty-four million, eleven thousand, two hundred twenty-one".