2021112047 has 2 divisors, whose sum is σ = 2021112048. Its totient is φ = 2021112046.

The previous prime is 2021111999. The next prime is 2021112103. The reversal of 2021112047 is 7402111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021112047 - 2²⁴ = 2004334831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021112347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010556023 + 1010556024.

It is an arithmetic number, because the mean of its divisors is an integer number (1010556024).

Almost surely, 2^2021112047 is an apocalyptic number.

2021112047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021112047 is an equidigital number, since it uses as much as digits as its factorization.

2021112047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2021112047 is about 44956.7797667938. The cubic root of 2021112047 is about 1264.3387936360.

Adding to 2021112047 its reverse (7402111202), we get a palindrome (9423223249).

The spelling of 2021112047 in words is "two billion, twenty-one million, one hundred twelve thousand, forty-seven".