101011212121011 has 16 divisors (see below), whose sum is σ = 136967184182400. Its totient is φ = 66198071216448.

The previous prime is 101011212120997. The next prime is 101011212121067. The reversal of 101011212121011 is 110121212110101.

It is not a de Polignac number, because 101011212121011 - 2¹³ = 101011212112819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101011212121411) 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, 2736615 + ... + 14474511.

It is an arithmetic number, because the mean of its divisors is an integer number (8560449011400).

Almost surely, 2^{101011212121011} is an apocalyptic number.

101011212121011 is a deficient number, since it is larger than the sum of its proper divisors (35955972061389).

101011212121011 is a wasteful number, since it uses less digits than its factorization.

101011212121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786578.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101011212121011 its reverse (110121212110101), we get a palindrome (211132424231112).

The spelling of 101011212121011 in words is "one hundred one trillion, eleven billion, two hundred twelve million, one hundred twenty-one thousand, eleven".