20124192211 has 2 divisors, whose sum is σ = 20124192212. Its totient is φ = 20124192210.

The previous prime is 20124192181. The next prime is 20124192223. The reversal of 20124192211 is 11229142102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20124192211 - 2⁷ = 20124192083 is a prime.

It is a super-2 number, since 2×20124192211² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20124192311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062096105 + 10062096106.

It is an arithmetic number, because the mean of its divisors is an integer number (10062096106).

Almost surely, 2^20124192211 is an apocalyptic number.

20124192211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124192211 is an equidigital number, since it uses as much as digits as its factorization.

20124192211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 20124192211 in words is "twenty billion, one hundred twenty-four million, one hundred ninety-two thousand, two hundred eleven".