2420221023 has 72 divisors (see below), whose sum is σ = 4097730000. Its totient is φ = 1364014080.

The previous prime is 2420221019. The next prime is 2420221033. The reversal of 2420221023 is 3201220242.

2420221023 is a `hidden beast` number, since 2 + 420 + 221 + 0 + 23 = 666.

It is not a de Polignac number, because 2420221023 - 2² = 2420221019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420220987 and 2420221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420221033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1937103 + ... + 1938351.

Almost surely, 2^2420221023 is an apocalyptic number.

2420221023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2420221023 is a deficient number, since it is larger than the sum of its proper divisors (1677508977).

2420221023 is a wasteful number, since it uses less digits than its factorization.

2420221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2420221023 is about 49195.7419193979. The cubic root of 2420221023 is about 1342.6155609355.

Adding to 2420221023 its reverse (3201220242), we get a palindrome (5621441265).

The spelling of 2420221023 in words is "two billion, four hundred twenty million, two hundred twenty-one thousand, twenty-three".