21000220101110 has 32 divisors (see below), whose sum is σ = 37834095255264. Its totient is φ = 8392602400000.

The previous prime is 21000220101109. The next prime is 21000220101167. The reversal of 21000220101110 is 1110102200012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21000220101091 and 21000220101100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55762040 + ... + 56137380.

It is an arithmetic number, because the mean of its divisors is an integer number (1182315476727).

Almost surely, 2^{21000220101110} is an apocalyptic number.

21000220101110 is a deficient number, since it is larger than the sum of its proper divisors (16833875154154).

21000220101110 is a wasteful number, since it uses less digits than its factorization.

21000220101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380320.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000220101110 its reverse (1110102200012), we get a palindrome (22110322301122).

The spelling of 21000220101110 in words is "twenty-one trillion, two hundred twenty million, one hundred one thousand, one hundred ten".