20121101122127 has 2 divisors, whose sum is σ = 20121101122128. Its totient is φ = 20121101122126.

The previous prime is 20121101122097. The next prime is 20121101122141. The reversal of 20121101122127 is 72122110112102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20121101122127 - 2⁶ = 20121101122063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121101122627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060550561063 + 10060550561064.

It is an arithmetic number, because the mean of its divisors is an integer number (10060550561064).

Almost surely, 2^{20121101122127} is an apocalyptic number.

20121101122127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121101122127 is an equidigital number, since it uses as much as digits as its factorization.

20121101122127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 20121101122127 its reverse (72122110112102), we get a palindrome (92243211234229).

The spelling of 20121101122127 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-seven".