12110101021157 has 2 divisors, whose sum is σ = 12110101021158. Its totient is φ = 12110101021156.

The previous prime is 12110101021153. The next prime is 12110101021273. The reversal of 12110101021157 is 75112010101121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11175555396196 + 934545624961 = 3342986^2 + 966719^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110101021157 - 2² = 12110101021153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110101021153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055050510578 + 6055050510579.

It is an arithmetic number, because the mean of its divisors is an integer number (6055050510579).

Almost surely, 2^{12110101021157} is an apocalyptic number.

It is an amenable number.

12110101021157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110101021157 is an equidigital number, since it uses as much as digits as its factorization.

12110101021157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 23.

Adding to 12110101021157 its reverse (75112010101121), we get a palindrome (87222111122278).

The spelling of 12110101021157 in words is "twelve trillion, one hundred ten billion, one hundred one million, twenty-one thousand, one hundred fifty-seven".