21000110200010 has 16 divisors (see below), whose sum is σ = 37874462020200. Its totient is φ = 8383541044416.

The previous prime is 21000110200001. The next prime is 21000110200061. The reversal of 21000110200010 is 1000201100012.

It can be written as a sum of positive squares in 4 ways, for example, as 12921673976929 + 8078436223081 = 3594673^2 + 2842259^2 .

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, 2062874105 + ... + 2062884284.

Almost surely, 2^{21000110200010} is an apocalyptic number.

21000110200010 is a deficient number, since it is larger than the sum of its proper divisors (16874351820190).

21000110200010 is a wasteful number, since it uses less digits than its factorization.

21000110200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125758905.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 21000110200010 its reverse (1000201100012), we get a palindrome (22000311300022).

The spelling of 21000110200010 in words is "twenty-one trillion, one hundred ten million, two hundred thousand, ten".