101211012122118 has 16 divisors (see below), whose sum is σ = 208951766962176. Its totient is φ = 32648713587720.

The previous prime is 101211012122117. The next prime is 101211012122147. The reversal of 101211012122118 is 811221210112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211012122117) 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 7 ways as a sum of consecutive naturals, for example, 272072613046 + ... + 272072613417.

It is an arithmetic number, because the mean of its divisors is an integer number (13059485435136).

Almost surely, 2^{101211012122118} is an apocalyptic number.

101211012122118 is an abundant number, since it is smaller than the sum of its proper divisors (107740754840058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211012122118 is a wasteful number, since it uses less digits than its factorization.

101211012122118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544145226499.

The product of its (nonzero) digits is 128, while the sum is 24.

Adding to 101211012122118 its reverse (811221210112101), we get a palindrome (912432222234219).

The spelling of 101211012122118 in words is "one hundred one trillion, two hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred eighteen".