21000110022110 has 16 divisors (see below), whose sum is σ = 37831258208016. Its totient is φ = 8393141749248.

The previous prime is 21000110022091. The next prime is 21000110022173. The reversal of 21000110022110 is 1122001100012.

It is a junction number, because it is equal to n+sod(n) for n = 21000110022091 and 21000110022100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862769672 + ... + 862794011.

It is an arithmetic number, because the mean of its divisors is an integer number (2364453638001).

Almost surely, 2^{21000110022110} is an apocalyptic number.

21000110022110 is a deficient number, since it is larger than the sum of its proper divisors (16831148185906).

21000110022110 is a wasteful number, since it uses less digits than its factorization.

21000110022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725564907.

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

Adding to 21000110022110 its reverse (1122001100012), we get a palindrome (22122111122122).

The spelling of 21000110022110 in words is "twenty-one trillion, one hundred ten million, twenty-two thousand, one hundred ten".