10111220211097 has 2 divisors, whose sum is σ = 10111220211098. Its totient is φ = 10111220211096.

The previous prime is 10111220211083. The next prime is 10111220211107. The reversal of 10111220211097 is 79011202211101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7869085325721 + 2242134885376 = 2805189^2 + 1497376^2 .

It is an emirp because it is prime and its reverse (79011202211101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10111220211097 - 2⁴³ = 1315127188889 is a prime.

It is a super-2 number, since 2×10111220211097² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10111220212097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055610105548 + 5055610105549.

It is an arithmetic number, because the mean of its divisors is an integer number (5055610105549).

Almost surely, 2^{10111220211097} is an apocalyptic number.

It is an amenable number.

10111220211097 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111220211097 is an equidigital number, since it uses as much as digits as its factorization.

10111220211097 is an odious number, because the sum of its binary digits is odd.

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

Adding to 10111220211097 its reverse (79011202211101), we get a palindrome (89122422422198).

The spelling of 10111220211097 in words is "ten trillion, one hundred eleven billion, two hundred twenty million, two hundred eleven thousand, ninety-seven".