21101011200210 has 16 divisors (see below), whose sum is σ = 50642426880576. Its totient is φ = 5626936320048.

The previous prime is 21101011200193. The next prime is 21101011200223. The reversal of 21101011200210 is 1200211010112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351683519974 + ... + 351683520033.

It is an arithmetic number, because the mean of its divisors is an integer number (3165151680036).

Almost surely, 2^{21101011200210} is an apocalyptic number.

21101011200210 is an abundant number, since it is smaller than the sum of its proper divisors (29541415680366).

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

21101011200210 is a wasteful number, since it uses less digits than its factorization.

21101011200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703367040017.

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

Adding to 21101011200210 its reverse (1200211010112), we get a palindrome (22301222210322).

The spelling of 21101011200210 in words is "twenty-one trillion, one hundred one billion, eleven million, two hundred thousand, two hundred ten".