21100210211010 has 64 divisors (see below), whose sum is σ = 58690001240064. Its totient is φ = 4754976945600.

The previous prime is 21100210210993. The next prime is 21100210211033. The reversal of 21100210211010 is 1011201200112.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 707570946 + ... + 707600765.

It is an arithmetic number, because the mean of its divisors is an integer number (917031269376).

Almost surely, 2^{21100210211010} is an apocalyptic number.

21100210211010 is an abundant number, since it is smaller than the sum of its proper divisors (37589791029054).

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

21100210211010 is a wasteful number, since it uses less digits than its factorization.

21100210211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415171799.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21100210211010 its reverse (1011201200112), we get a palindrome (22111411411122).

The spelling of 21100210211010 in words is "twenty-one trillion, one hundred billion, two hundred ten million, two hundred eleven thousand, ten".