20121022711 has 2 divisors, whose sum is σ = 20121022712. Its totient is φ = 20121022710.

The previous prime is 20121022699. The next prime is 20121022721. The reversal of 20121022711 is 11722012102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20121022711 - 2⁷ = 20121022583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121022721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060511355 + 10060511356.

It is an arithmetic number, because the mean of its divisors is an integer number (10060511356).

Almost surely, 2^20121022711 is an apocalyptic number.

20121022711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121022711 is an equidigital number, since it uses as much as digits as its factorization.

20121022711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 20121022711 its reverse (11722012102), we get a palindrome (31843034813).

The spelling of 20121022711 in words is "twenty billion, one hundred twenty-one million, twenty-two thousand, seven hundred eleven".