202221024242 has 4 divisors (see below), whose sum is σ = 303331536366. Its totient is φ = 101110512120.

The previous prime is 202221024227. The next prime is 202221024253. The reversal of 202221024242 is 242420122202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 168232045921 + 33988978321 = 410161^2 + 184361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555256059 + ... + 50555256062.

Almost surely, 2^202221024242 is an apocalyptic number.

202221024242 is a deficient number, since it is larger than the sum of its proper divisors (101110512124).

202221024242 is a wasteful number, since it uses less digits than its factorization.

202221024242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101110512123.

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

Adding to 202221024242 its reverse (242420122202), we get a palindrome (444641146444).

The spelling of 202221024242 in words is "two hundred two billion, two hundred twenty-one million, twenty-four thousand, two hundred forty-two".