21010200000010 has 32 divisors (see below), whose sum is σ = 40842839958480. Its totient is φ = 7735636051968.

The previous prime is 21010199999977. The next prime is 21010200000047. The reversal of 21010200000010 is 1000000201012.

It can be written as a sum of positive squares in 8 ways, for example, as 9953198407161 + 11057001592849 = 3154869^2 + 3325207^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21010199999939 and 21010200000002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228873265 + ... + 228965044.

Almost surely, 2^{21010200000010} is an apocalyptic number.

21010200000010 is a deficient number, since it is larger than the sum of its proper divisors (19832639958470).

21010200000010 is a wasteful number, since it uses less digits than its factorization.

21010200000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457838682.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 21010200000010 its reverse (1000000201012), we get a palindrome (22010200201022).

The spelling of 21010200000010 in words is "twenty-one trillion, ten billion, two hundred million, ten", and thus it is an aban number.