201110110120 has 16 divisors (see below), whose sum is σ = 452497747860. Its totient is φ = 80444044032.

The previous prime is 201110110079. The next prime is 201110110127. The reversal of 201110110120 is 21011011102.

It can be written as a sum of positive squares in 2 ways, for example, as 200093393124 + 1016716996 = 447318^2 + 31886^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 201110110097 and 201110110106.

It is not an unprimeable number, because it can be changed into a prime (201110110127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513876337 + ... + 2513876416.

Almost surely, 2^201110110120 is an apocalyptic number.

201110110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201110110120 is an abundant number, since it is smaller than the sum of its proper divisors (251387637740).

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

201110110120 is a wasteful number, since it uses less digits than its factorization.

201110110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027752764 (or 5027752760 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 201110110120 its reverse (21011011102), we get a palindrome (222121121222).

The spelling of 201110110120 in words is "two hundred one billion, one hundred ten million, one hundred ten thousand, one hundred twenty".