21202121010002 has 8 divisors (see below), whose sum is σ = 31804905974256. Its totient is φ = 10600485685252.

The previous prime is 21202121009983. The next prime is 21202121010017. The reversal of 21202121010002 is 20001012120212.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287363768 + ... + 287437539.

It is an arithmetic number, because the mean of its divisors is an integer number (3975613246782).

Almost surely, 2^{21202121010002} is an apocalyptic number.

21202121010002 is a deficient number, since it is larger than the sum of its proper divisors (10602784964254).

21202121010002 is a wasteful number, since it uses less digits than its factorization.

21202121010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574819752.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202121010002 its reverse (20001012120212), we get a palindrome (41203133130214).

The spelling of 21202121010002 in words is "twenty-one trillion, two hundred two billion, one hundred twenty-one million, ten thousand, two".