10221421420202 has 8 divisors (see below), whose sum is σ = 15332147799300. Its totient is φ = 5110705487104.

The previous prime is 10221421420099. The next prime is 10221421420211. The reversal of 10221421420202 is 20202412412201.

It can be written as a sum of positive squares in 2 ways, for example, as 10216467935041 + 4953485161 = 3196321^2 + 70381^2 .

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, 648824 + ... + 4567692.

Almost surely, 2^{10221421420202} is an apocalyptic number.

10221421420202 is a deficient number, since it is larger than the sum of its proper divisors (5110726379098).

10221421420202 is a wasteful number, since it uses less digits than its factorization.

10221421420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223000.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 10221421420202 its reverse (20202412412201), we get a palindrome (30423833832403).

The spelling of 10221421420202 in words is "ten trillion, two hundred twenty-one billion, four hundred twenty-one million, four hundred twenty thousand, two hundred two".