101210557161 has 32 divisors (see below), whose sum is σ = 161149409280. Its totient is φ = 55245003264.

The previous prime is 101210557039. The next prime is 101210557181. The reversal of 101210557161 is 161755012101.

It is not a de Polignac number, because 101210557161 - 2⁷ = 101210557033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101210557181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215161 + ... + 498713.

It is an arithmetic number, because the mean of its divisors is an integer number (5035919040).

Almost surely, 2^101210557161 is an apocalyptic number.

It is an amenable number.

101210557161 is a deficient number, since it is larger than the sum of its proper divisors (59938852119).

101210557161 is a wasteful number, since it uses less digits than its factorization.

101210557161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284325.

The product of its (nonzero) digits is 2100, while the sum is 30.

Adding to 101210557161 its reverse (161755012101), we get a palindrome (262965569262).

The spelling of 101210557161 in words is "one hundred one billion, two hundred ten million, five hundred fifty-seven thousand, one hundred sixty-one".