21100200201010 has 64 divisors (see below), whose sum is σ = 44044177462272. Its totient is φ = 7128208175616.

The previous prime is 21100200200999. The next prime is 21100200201019. The reversal of 21100200201010 is 1010200200112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (21100200201019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3138327 + ... + 7214533.

It is an arithmetic number, because the mean of its divisors is an integer number (688190272848).

Almost surely, 2^{21100200201010} is an apocalyptic number.

21100200201010 is an abundant number, since it is smaller than the sum of its proper divisors (22943977261262).

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

21100200201010 is a wasteful number, since it uses less digits than its factorization.

21100200201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077307.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21100200201010 its reverse (1010200200112), we get a palindrome (22110400401122).

The spelling of 21100200201010 in words is "twenty-one trillion, one hundred billion, two hundred million, two hundred one thousand, ten".