202142212424 has 64 divisors (see below), whose sum is σ = 397004010480. Its totient is φ = 96398848000.

The previous prime is 202142212417. The next prime is 202142212463. The reversal of 202142212424 is 424212241202.

It can be written as a sum of positive squares in 8 ways, for example, as 93715576900 + 108426635524 = 306130^2 + 329282^2 .

It is a super-2 number, since 2×202142212424² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202142212393 and 202142212402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4864214 + ... + 4905594.

Almost surely, 2^202142212424 is an apocalyptic number.

It is an amenable number.

202142212424 is a deficient number, since it is larger than the sum of its proper divisors (194861798056).

202142212424 is a wasteful number, since it uses less digits than its factorization.

202142212424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41762 (or 41758 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 202142212424 its reverse (424212241202), we get a palindrome (626354453626).

The spelling of 202142212424 in words is "two hundred two billion, one hundred forty-two million, two hundred twelve thousand, four hundred twenty-four".