21982759211 has 16 divisors (see below), whose sum is σ = 27143870400. Its totient is φ = 17733985920.

The previous prime is 21982759193. The next prime is 21982759229. The reversal of 21982759211 is 11295728912.

It is an interprime number because it is at equal distance from previous prime (21982759193) and next prime (21982759229).

It is not a de Polignac number, because 21982759211 - 2⁶ = 21982759147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21982759231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1879160 + ... + 1890821.

It is an arithmetic number, because the mean of its divisors is an integer number (1696491900).

Almost surely, 2^21982759211 is an apocalyptic number.

21982759211 is a deficient number, since it is larger than the sum of its proper divisors (5161111189).

21982759211 is an equidigital number, since it uses as much as digits as its factorization.

21982759211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770019 (or 3770005 counting only the distinct ones).

The product of its digits is 181440, while the sum is 47.

The spelling of 21982759211 in words is "twenty-one billion, nine hundred eighty-two million, seven hundred fifty-nine thousand, two hundred eleven".