21210200010010 has 16 divisors (see below), whose sum is σ = 41649120019872. Its totient is φ = 7712800003600.

The previous prime is 21210200009959. The next prime is 21210200010011. The reversal of 21210200010010 is 1001000201212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (21210200010011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96409999936 + ... + 96410000155.

It is an arithmetic number, because the mean of its divisors is an integer number (2603070001242).

Almost surely, 2^{21210200010010} is an apocalyptic number.

21210200010010 is a deficient number, since it is larger than the sum of its proper divisors (20438920009862).

21210200010010 is a wasteful number, since it uses less digits than its factorization.

21210200010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192820000109.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21210200010010 its reverse (1001000201212), we get a palindrome (22211200211222).

The spelling of 21210200010010 in words is "twenty-one trillion, two hundred ten billion, two hundred million, ten thousand, ten".