1210211101097 has 2 divisors, whose sum is σ = 1210211101098. Its totient is φ = 1210211101096.

The previous prime is 1210211101081. The next prime is 1210211101139. The reversal of 1210211101097 is 7901011120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669433239721 + 540777861376 = 818189^2 + 735376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210211101097 - 2⁴ = 1210211101081 is a prime.

It is a super-2 number, since 2×1210211101097² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1210211109097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605105550548 + 605105550549.

It is an arithmetic number, because the mean of its divisors is an integer number (605105550549).

Almost surely, 2^{1210211101097} is an apocalyptic number.

It is an amenable number.

1210211101097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210211101097 is an equidigital number, since it uses as much as digits as its factorization.

1210211101097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 1210211101097 in words is "one trillion, two hundred ten billion, two hundred eleven million, one hundred one thousand, ninety-seven".