20122711727467 has 2 divisors, whose sum is σ = 20122711727468. Its totient is φ = 20122711727466.

The previous prime is 20122711727399. The next prime is 20122711727471. The reversal of 20122711727467 is 76472711722102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122711727467 - 2¹¹ = 20122711725419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122711727467.

It is not a weakly prime, because it can be changed into another prime (20122711727477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061355863733 + 10061355863734.

It is an arithmetic number, because the mean of its divisors is an integer number (10061355863734).

Almost surely, 2^{20122711727467} is an apocalyptic number.

20122711727467 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122711727467 is an equidigital number, since it uses as much as digits as its factorization.

20122711727467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921984, while the sum is 49.

The spelling of 20122711727467 in words is "twenty trillion, one hundred twenty-two billion, seven hundred eleven million, seven hundred twenty-seven thousand, four hundred sixty-seven".