21010212202 has 8 divisors (see below), whose sum is σ = 36017506656. Its totient is φ = 9004376652.

The previous prime is 21010212199. The next prime is 21010212257. The reversal of 21010212202 is 20221201012.

It is a happy number.

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, 750364708 + ... + 750364735.

It is an arithmetic number, because the mean of its divisors is an integer number (4502188332).

Almost surely, 2^21010212202 is an apocalyptic number.

21010212202 is a deficient number, since it is larger than the sum of its proper divisors (15007294454).

21010212202 is a wasteful number, since it uses less digits than its factorization.

21010212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500729452.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21010212202 its reverse (20221201012), we get a palindrome (41231413214).

The spelling of 21010212202 in words is "twenty-one billion, ten million, two hundred twelve thousand, two hundred two".