1211012101297 has 2 divisors, whose sum is σ = 1211012101298. Its totient is φ = 1211012101296.

The previous prime is 1211012101183. The next prime is 1211012101471. The reversal of 1211012101297 is 7921012101121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729377489296 + 481634612001 = 854036^2 + 693999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211012101297 - 2³⁵ = 1176652362929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211012171297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605506050648 + 605506050649.

It is an arithmetic number, because the mean of its divisors is an integer number (605506050649).

Almost surely, 2^{1211012101297} is an apocalyptic number.

It is an amenable number.

1211012101297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211012101297 is an equidigital number, since it uses as much as digits as its factorization.

1211012101297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 1211012101297 in words is "one trillion, two hundred eleven billion, twelve million, one hundred one thousand, two hundred ninety-seven".