21210110119 has 16 divisors (see below), whose sum is σ = 23790251520. Its totient is φ = 18742104000.

The previous prime is 21210110111. The next prime is 21210110137. The reversal of 21210110119 is 91101101212.

It is a cyclic number.

It is not a de Polignac number, because 21210110119 - 2³ = 21210110111 is a prime.

It is a super-2 number, since 2×21210110119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21210110096 and 21210110105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210110111) 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, 35452 + ... + 208990.

It is an arithmetic number, because the mean of its divisors is an integer number (1486890720).

Almost surely, 2^21210110119 is an apocalyptic number.

21210110119 is a deficient number, since it is larger than the sum of its proper divisors (2580141401).

21210110119 is a wasteful number, since it uses less digits than its factorization.

21210110119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173862.

The product of its (nonzero) digits is 36, while the sum is 19.

It can be divided in two parts, 2 and 1210110119, that added together give a palindrome (1210110121).

The spelling of 21210110119 in words is "twenty-one billion, two hundred ten million, one hundred ten thousand, one hundred nineteen".