2021472911 has 4 divisors (see below), whose sum is σ = 2076107352. Its totient is φ = 1966838472.

The previous prime is 2021472889. The next prime is 2021473007. The reversal of 2021472911 is 1192741202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1192741202 = 2 ⋅596370601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021472911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021472511) 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 in 3 ways as a sum of consecutive naturals, for example, 27317165 + ... + 27317238.

It is an arithmetic number, because the mean of its divisors is an integer number (519026838).

Almost surely, 2^2021472911 is an apocalyptic number.

2021472911 is a deficient number, since it is larger than the sum of its proper divisors (54634441).

2021472911 is an equidigital number, since it uses as much as digits as its factorization.

2021472911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54634440.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2021472911 is about 44960.7930423830. The cubic root of 2021472911 is about 1264.4140372300.

The spelling of 2021472911 in words is "two billion, twenty-one million, four hundred seventy-two thousand, nine hundred eleven".