21210200011010 has 8 divisors (see below), whose sum is σ = 38178360019836. Its totient is φ = 8484080004400.

The previous prime is 21210200010971. The next prime is 21210200011051. The reversal of 21210200011010 is 1011000201212.

It can be written as a sum of positive squares in 2 ways, for example, as 19641321013609 + 1568878997401 = 4431853^2 + 1252549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21210200010982 and 21210200011000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060510000541 + ... + 1060510000560.

Almost surely, 2^{21210200011010} is an apocalyptic number.

21210200011010 is a deficient number, since it is larger than the sum of its proper divisors (16968160008826).

21210200011010 is a wasteful number, since it uses less digits than its factorization.

21210200011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121020001108.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21210200011010 its reverse (1011000201212), we get a palindrome (22221200212222).

The spelling of 21210200011010 in words is "twenty-one trillion, two hundred ten billion, two hundred million, eleven thousand, ten".