21210113220010 has 128 divisors (see below), whose sum is σ = 45849684787200. Its totient is φ = 6962758513920.

The previous prime is 21210113219947. The next prime is 21210113220041. The reversal of 21210113220010 is 1002231101212.

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 63 ways as a sum of consecutive naturals, for example, 12521271 + ... + 14113909.

It is an arithmetic number, because the mean of its divisors is an integer number (358200662400).

Almost surely, 2^{21210113220010} is an apocalyptic number.

21210113220010 is an abundant number, since it is smaller than the sum of its proper divisors (24639571567190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21210113220010 is a wasteful number, since it uses less digits than its factorization.

21210113220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592876.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21210113220010 its reverse (1002231101212), we get a palindrome (22212344321222).

The spelling of 21210113220010 in words is "twenty-one trillion, two hundred ten billion, one hundred thirteen million, two hundred twenty thousand, ten".