21001102101110 has 16 divisors (see below), whose sum is σ = 37802175613776. Its totient is φ = 8400398211168.

The previous prime is 21001102101041. The next prime is 21001102101113. The reversal of 21001102101110 is 1110120110012.

It is a super-2 number, since 2×21001102101110² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21001102101091 and 21001102101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001102101113) by changing a digit.

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, 3219809 + ... + 7236668.

It is an arithmetic number, because the mean of its divisors is an integer number (2362635975861).

Almost surely, 2^{21001102101110} is an apocalyptic number.

21001102101110 is a deficient number, since it is larger than the sum of its proper divisors (16801073512666).

21001102101110 is a wasteful number, since it uses less digits than its factorization.

21001102101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657327.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 21001102101110 its reverse (1110120110012), we get a palindrome (22111222211122).

The spelling of 21001102101110 in words is "twenty-one trillion, one billion, one hundred two million, one hundred one thousand, one hundred ten".