21110102111101 has 16 divisors (see below), whose sum is σ = 21809981928960. Its totient is φ = 20422097579520.

The previous prime is 21110102110973. The next prime is 21110102111159. The reversal of 21110102111101 is 10111120101112.

It is not a de Polignac number, because 21110102111101 - 2⁷ = 21110102110973 is a prime.

It is a super-2 number, since 2×21110102111101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110102118101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281940 + ... + 6503821.

It is an arithmetic number, because the mean of its divisors is an integer number (1363123870560).

Almost surely, 2^{21110102111101} is an apocalyptic number.

It is an amenable number.

21110102111101 is a deficient number, since it is larger than the sum of its proper divisors (699879817859).

21110102111101 is an equidigital number, since it uses as much as digits as its factorization.

21110102111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786636.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 21110102111101 its reverse (10111120101112), we get a palindrome (31221222212213).

The spelling of 21110102111101 in words is "twenty-one trillion, one hundred ten billion, one hundred two million, one hundred eleven thousand, one hundred one".