101120220191 has 2 divisors, whose sum is σ = 101120220192. Its totient is φ = 101120220190.

The previous prime is 101120220181. The next prime is 101120220203. The reversal of 101120220191 is 191022021101.

It is a weak prime.

It is an emirp because it is prime and its reverse (191022021101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101120220191 is a prime.

It is a super-3 number, since 3×101120220191³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101120220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560110095 + 50560110096.

It is an arithmetic number, because the mean of its divisors is an integer number (50560110096).

Almost surely, 2^101120220191 is an apocalyptic number.

101120220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

101120220191 is an equidigital number, since it uses as much as digits as its factorization.

101120220191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 101120220191 its reverse (191022021101), we get a palindrome (292142241292).

The spelling of 101120220191 in words is "one hundred one billion, one hundred twenty million, two hundred twenty thousand, one hundred ninety-one".