101201020112091 has 16 divisors (see below), whose sum is σ = 137702656000800. Its totient is φ = 66097274842368.

The previous prime is 101201020112089. The next prime is 101201020112107. The reversal of 101201020112091 is 190211020102101.

It is not a de Polignac number, because 101201020112091 - 2¹ = 101201020112089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101201020112791) 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, 1738640796 + ... + 1738699001.

It is an arithmetic number, because the mean of its divisors is an integer number (8606416000050).

Almost surely, 2^{101201020112091} is an apocalyptic number.

101201020112091 is a deficient number, since it is larger than the sum of its proper divisors (36501635888709).

101201020112091 is a wasteful number, since it uses less digits than its factorization.

101201020112091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477339998.

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

Adding to 101201020112091 its reverse (190211020102101), we get a palindrome (291412040214192).

The spelling of 101201020112091 in words is "one hundred one trillion, two hundred one billion, twenty million, one hundred twelve thousand, ninety-one".