20212100039 has 2 divisors, whose sum is σ = 20212100040. Its totient is φ = 20212100038.

The previous prime is 20212099979. The next prime is 20212100063. The reversal of 20212100039 is 93000121202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212100039 - 2³² = 15917132743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212120039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106050019 + 10106050020.

It is an arithmetic number, because the mean of its divisors is an integer number (10106050020).

Almost surely, 2^20212100039 is an apocalyptic number.

20212100039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212100039 is an equidigital number, since it uses as much as digits as its factorization.

20212100039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 20212100039 in words is "twenty billion, two hundred twelve million, one hundred thousand, thirty-nine".