21201122100010 has 16 divisors (see below), whose sum is σ = 38166217723872. Its totient is φ = 8479515963600.

The previous prime is 21201122099999. The next prime is 21201122100023. The reversal of 21201122100010 is 1000122110212.

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, 116514096 + ... + 116695915.

It is an arithmetic number, because the mean of its divisors is an integer number (2385388607742).

Almost surely, 2^{21201122100010} is an apocalyptic number.

21201122100010 is a deficient number, since it is larger than the sum of its proper divisors (16965095623862).

21201122100010 is a wasteful number, since it uses less digits than its factorization.

21201122100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233219109.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21201122100010 its reverse (1000122110212), we get a palindrome (22201244210222).

The spelling of 21201122100010 in words is "twenty-one trillion, two hundred one billion, one hundred twenty-two million, one hundred thousand, ten".