101020111211 has 8 divisors (see below), whose sum is σ = 106983098640. Its totient is φ = 95059415808.

The previous prime is 101020111207. The next prime is 101020111261. The reversal of 101020111211 is 112111020101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101020111211 - 2² = 101020111207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020111192 and 101020111201.

It is not an unprimeable number, because it can be changed into a prime (101020111261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481841 + ... + 658946.

It is an arithmetic number, because the mean of its divisors is an integer number (13372887330).

Almost surely, 2^101020111211 is an apocalyptic number.

101020111211 is a deficient number, since it is larger than the sum of its proper divisors (5962987429).

101020111211 is a wasteful number, since it uses less digits than its factorization.

101020111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146013.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101020111211 its reverse (112111020101), we get a palindrome (213131131312).

The spelling of 101020111211 in words is "one hundred one billion, twenty million, one hundred eleven thousand, two hundred eleven".