21002012200210 has 16 divisors (see below), whose sum is σ = 38170647418176. Its totient is φ = 8319243667248.

The previous prime is 21002012200193. The next prime is 21002012200217. The reversal of 21002012200210 is 1200221020012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21002012200217) 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, 10195150524 + ... + 10195152583.

It is an arithmetic number, because the mean of its divisors is an integer number (2385665463636).

Almost surely, 2^{21002012200210} is an apocalyptic number.

21002012200210 is a deficient number, since it is larger than the sum of its proper divisors (17168635217966).

21002012200210 is a wasteful number, since it uses less digits than its factorization.

21002012200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20390303217.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21002012200210 its reverse (1200221020012), we get a palindrome (22202233220222).

The spelling of 21002012200210 in words is "twenty-one trillion, two billion, twelve million, two hundred thousand, two hundred ten".