101116161021 has 16 divisors (see below), whose sum is σ = 140741936640. Its totient is φ = 64453020720.

The previous prime is 101116161019. The next prime is 101116161031. The reversal of 101116161021 is 120161611101.

It is not a de Polignac number, because 101116161021 - 2¹ = 101116161019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101116161031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137551 + ... + 470268.

It is an arithmetic number, because the mean of its divisors is an integer number (8796371040).

Almost surely, 2^101116161021 is an apocalyptic number.

It is an amenable number.

101116161021 is a deficient number, since it is larger than the sum of its proper divisors (39625775619).

101116161021 is a wasteful number, since it uses less digits than its factorization.

101116161021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610256.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 101116161021 its reverse (120161611101), we get a palindrome (221277772122).

The spelling of 101116161021 in words is "one hundred one billion, one hundred sixteen million, one hundred sixty-one thousand, twenty-one".