21010112021110 has 8 divisors (see below), whose sum is σ = 37818201638016. Its totient is φ = 8404044808440.

The previous prime is 21010112021057. The next prime is 21010112021131. The reversal of 21010112021110 is 1112021101012.

It is a happy number.

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

It is a congruent number.

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, 1050505601046 + ... + 1050505601065.

It is an arithmetic number, because the mean of its divisors is an integer number (4727275204752).

Almost surely, 2^{21010112021110} is an apocalyptic number.

21010112021110 is a deficient number, since it is larger than the sum of its proper divisors (16808089616906).

21010112021110 is a wasteful number, since it uses less digits than its factorization.

21010112021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101011202118.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21010112021110 its reverse (1112021101012), we get a palindrome (22122133122122).

The spelling of 21010112021110 in words is "twenty-one trillion, ten billion, one hundred twelve million, twenty-one thousand, one hundred ten".