21102210011210 has 16 divisors (see below), whose sum is σ = 38518963627392. Its totient is φ = 8321998314000.

The previous prime is 21102210011209. The next prime is 21102210011219. The reversal of 21102210011210 is 1211001220112.

It is not an unprimeable number, because it can be changed into a prime (21102210011219) 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, 14860710566 + ... + 14860711985.

It is an arithmetic number, because the mean of its divisors is an integer number (2407435226712).

Almost surely, 2^{21102210011210} is an apocalyptic number.

21102210011210 is a deficient number, since it is larger than the sum of its proper divisors (17416753616182).

21102210011210 is a wasteful number, since it uses less digits than its factorization.

21102210011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29721422629.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21102210011210 its reverse (1211001220112), we get a palindrome (22313211231322).

The spelling of 21102210011210 in words is "twenty-one trillion, one hundred two billion, two hundred ten million, eleven thousand, two hundred ten".