220100101181 has 2 divisors, whose sum is σ = 220100101182. Its totient is φ = 220100101180.

The previous prime is 220100101103. The next prime is 220100101183. The reversal of 220100101181 is 181101001022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211457424025 + 8642677156 = 459845^2 + 92966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220100101181 is a prime.

It is a super-2 number, since 2×220100101181² (a number of 23 digits) contains 22 as substring.

Together with 220100101183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220100101183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050050590 + 110050050591.

It is an arithmetic number, because the mean of its divisors is an integer number (110050050591).

Almost surely, 2^220100101181 is an apocalyptic number.

It is an amenable number.

220100101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

220100101181 is an equidigital number, since it uses as much as digits as its factorization.

220100101181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

The spelling of 220100101181 in words is "two hundred twenty billion, one hundred million, one hundred one thousand, one hundred eighty-one".