21210414201242 has 8 divisors (see below), whose sum is σ = 36360710059296. Its totient is φ = 9090177514812.

The previous prime is 21210414201211. The next prime is 21210414201253. The reversal of 21210414201242 is 24210241401212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757514792888 + ... + 757514792915.

It is an arithmetic number, because the mean of its divisors is an integer number (4545088757412).

Almost surely, 2^{21210414201242} is an apocalyptic number.

21210414201242 is a deficient number, since it is larger than the sum of its proper divisors (15150295858054).

21210414201242 is a wasteful number, since it uses less digits than its factorization.

21210414201242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515029585812.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 21210414201242 its reverse (24210241401212), we get a palindrome (45420655602454).

The spelling of 21210414201242 in words is "twenty-one trillion, two hundred ten billion, four hundred fourteen million, two hundred one thousand, two hundred forty-two".