21010211112110 has 16 divisors (see below), whose sum is σ = 41256414547632. Its totient is φ = 7640076768000.

The previous prime is 21010211112073. The next prime is 21010211112113. The reversal of 21010211112110 is 1121111201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010211112113) 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, 95500959491 + ... + 95500959710.

It is an arithmetic number, because the mean of its divisors is an integer number (2578525909227).

Almost surely, 2^{21010211112110} is an apocalyptic number.

21010211112110 is a deficient number, since it is larger than the sum of its proper divisors (20246203435522).

21010211112110 is a wasteful number, since it uses less digits than its factorization.

21010211112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191001919219.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21010211112110 its reverse (1121111201012), we get a palindrome (22131322313122).

The spelling of 21010211112110 in words is "twenty-one trillion, ten billion, two hundred eleven million, one hundred twelve thousand, one hundred ten".