101101211211281 has 2 divisors, whose sum is σ = 101101211211282. Its totient is φ = 101101211211280.

The previous prime is 101101211211263. The next prime is 101101211211289. The reversal of 101101211211281 is 182112112101101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60559274976256 + 40541936235025 = 7781984^2 + 6367255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101101211211281 is a prime.

It is a super-2 number, since 2×101101211211281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101101211211289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550605605640 + 50550605605641.

It is an arithmetic number, because the mean of its divisors is an integer number (50550605605641).

Almost surely, 2^{101101211211281} is an apocalyptic number.

It is an amenable number.

101101211211281 is a deficient number, since it is larger than the sum of its proper divisors (1).

101101211211281 is an equidigital number, since it uses as much as digits as its factorization.

101101211211281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 23.

Adding to 101101211211281 its reverse (182112112101101), we get a palindrome (283213323312382).

The spelling of 101101211211281 in words is "one hundred one trillion, one hundred one billion, two hundred eleven million, two hundred eleven thousand, two hundred eighty-one".