202220200042 has 12 divisors (see below), whose sum is σ = 352853614530. Its totient is φ = 86665799976.

The previous prime is 202220199991. The next prime is 202220200087. The reversal of 202220200042 is 240002022202.

It can be written as a sum of positive squares in only one way, i.e., 102009333321 + 100210866721 = 319389^2 + 316561^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202220199989 and 202220200025.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1031735617 + ... + 1031735812.

Almost surely, 2^202220200042 is an apocalyptic number.

202220200042 is a deficient number, since it is larger than the sum of its proper divisors (150633414488).

202220200042 is a wasteful number, since it uses less digits than its factorization.

202220200042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063471445 (or 2063471438 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 202220200042 its reverse (240002022202), we get a palindrome (442222222244).

The spelling of 202220200042 in words is "two hundred two billion, two hundred twenty million, two hundred thousand, forty-two".