201421322522242 has 8 divisors (see below), whose sum is σ = 303941157339456. Its totient is φ = 100107603409092.

The previous prime is 201421322522239. The next prime is 201421322522341. The reversal of 201421322522242 is 242225223124102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201421322522198 and 201421322522207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301528925598 + ... + 301528926265.

It is an arithmetic number, because the mean of its divisors is an integer number (37992644667432).

Almost surely, 2^{201421322522242} is an apocalyptic number.

201421322522242 is a deficient number, since it is larger than the sum of its proper divisors (102519834817214).

201421322522242 is a wasteful number, since it uses less digits than its factorization.

201421322522242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603057852032.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 201421322522242 its reverse (242225223124102), we get a palindrome (443646545646344).

The spelling of 201421322522242 in words is "two hundred one trillion, four hundred twenty-one billion, three hundred twenty-two million, five hundred twenty-two thousand, two hundred forty-two".