21021110119 has 2 divisors, whose sum is σ = 21021110120. Its totient is φ = 21021110118.

The previous prime is 21021110093. The next prime is 21021110129. The reversal of 21021110119 is 91101112012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21021110119 - 2⁹ = 21021109607 is a prime.

It is a super-2 number, since 2×21021110119² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21021110096 and 21021110105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21021110129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510555059 + 10510555060.

It is an arithmetic number, because the mean of its divisors is an integer number (10510555060).

Almost surely, 2^21021110119 is an apocalyptic number.

21021110119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21021110119 is an equidigital number, since it uses as much as digits as its factorization.

21021110119 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 21021110119 in words is "twenty-one billion, twenty-one million, one hundred ten thousand, one hundred nineteen".