21010222202 has 16 divisors (see below), whose sum is σ = 32302422432. Its totient is φ = 10245853200.

The previous prime is 21010222187. The next prime is 21010222237. The reversal of 21010222202 is 20222201012.

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 7 ways as a sum of consecutive naturals, for example, 762668 + ... + 789735.

It is an arithmetic number, because the mean of its divisors is an integer number (2018901402).

Almost surely, 2^21010222202 is an apocalyptic number.

21010222202 is a deficient number, since it is larger than the sum of its proper divisors (11292200230).

21010222202 is a wasteful number, since it uses less digits than its factorization.

21010222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552573.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21010222202 its reverse (20222201012), we get a palindrome (41232423214).

The spelling of 21010222202 in words is "twenty-one billion, ten million, two hundred twenty-two thousand, two hundred two".