21112220110039 has 2 divisors, whose sum is σ = 21112220110040. Its totient is φ = 21112220110038.

The previous prime is 21112220110019. The next prime is 21112220110057. The reversal of 21112220110039 is 93001102221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112220110039 - 2³³ = 21103630175447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21112220109995 and 21112220110022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112220110019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556110055019 + 10556110055020.

It is an arithmetic number, because the mean of its divisors is an integer number (10556110055020).

Almost surely, 2^{21112220110039} is an apocalyptic number.

21112220110039 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112220110039 is an equidigital number, since it uses as much as digits as its factorization.

21112220110039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 21112220110039 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty million, one hundred ten thousand, thirty-nine".