202120442024 has 16 divisors (see below), whose sum is σ = 378994958100. Its totient is φ = 101055119872.

The previous prime is 202120442023. The next prime is 202120442053. The reversal of 202120442024 is 420244021202.

It can be written as a sum of positive squares in 2 ways, for example, as 152888820100 + 49231621924 = 391010^2 + 221882^2 .

It is not an unprimeable number, because it can be changed into a prime (202120442023) 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 3 ways as a sum of consecutive naturals, for example, 466547 + ... + 788610.

Almost surely, 2^202120442024 is an apocalyptic number.

It is an amenable number.

202120442024 is a deficient number, since it is larger than the sum of its proper divisors (176874516076).

202120442024 is a wasteful number, since it uses less digits than its factorization.

202120442024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275292 (or 1275288 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 202120442024 its reverse (420244021202), we get a palindrome (622364463226).

The spelling of 202120442024 in words is "two hundred two billion, one hundred twenty million, four hundred forty-two thousand, twenty-four".