101121110205 has 16 divisors (see below), whose sum is σ = 170309238720. Its totient is φ = 51092771328.

The previous prime is 101121110197. The next prime is 101121110221. The reversal of 101121110205 is 502011121101.

It is not a de Polignac number, because 101121110205 - 2³ = 101121110197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177405172 + ... + 177405741.

It is an arithmetic number, because the mean of its divisors is an integer number (10644327420).

Almost surely, 2^101121110205 is an apocalyptic number.

101121110205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101121110205 is a deficient number, since it is larger than the sum of its proper divisors (69188128515).

101121110205 is a wasteful number, since it uses less digits than its factorization.

101121110205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354810940.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 101121110205 its reverse (502011121101), we get a palindrome (603132231306).

The spelling of 101121110205 in words is "one hundred one billion, one hundred twenty-one million, one hundred ten thousand, two hundred five".