11101210219997 has 2 divisors, whose sum is σ = 11101210219998. Its totient is φ = 11101210219996.

The previous prime is 11101210219993. The next prime is 11101210220047. The reversal of 11101210219997 is 79991201210111.

11101210219997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10130145818521 + 971064401476 = 3182789^2 + 985426^2 .

It is an emirp because it is prime and its reverse (79991201210111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11101210219997 - 2² = 11101210219993 is a prime.

It is a super-2 number, since 2×11101210219997² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101210219993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550605109998 + 5550605109999.

It is an arithmetic number, because the mean of its divisors is an integer number (5550605109999).

Almost surely, 2^{11101210219997} is an apocalyptic number.

It is an amenable number.

11101210219997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101210219997 is an equidigital number, since it uses as much as digits as its factorization.

11101210219997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 44.

The spelling of 11101210219997 in words is "eleven trillion, one hundred one billion, two hundred ten million, two hundred nineteen thousand, nine hundred ninety-seven".