120101110100205 has 32 divisors (see below), whose sum is σ = 219116595446784. Its totient is φ = 55648659158016.

The previous prime is 120101110100143. The next prime is 120101110100207. The reversal of 120101110100205 is 502001011101021.

It is not a de Polignac number, because 120101110100205 - 2⁹ = 120101110099693 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 not an unprimeable number, because it can be changed into a prime (120101110100207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18114794589 + ... + 18114801218.

It is an arithmetic number, because the mean of its divisors is an integer number (6847393607712).

Almost surely, 2^{120101110100205} is an apocalyptic number.

120101110100205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120101110100205 is a deficient number, since it is larger than the sum of its proper divisors (99015485346579).

120101110100205 is a wasteful number, since it uses less digits than its factorization.

120101110100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36229595845.

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

Adding to 120101110100205 its reverse (502001011101021), we get a palindrome (622102121201226).

The spelling of 120101110100205 in words is "one hundred twenty trillion, one hundred one billion, one hundred ten million, one hundred thousand, two hundred five".