201121118 has 96 divisors (see below), whose sum is σ = 386104320. Its totient is φ = 77932800.

The previous prime is 201121117. The next prime is 201121133. The reversal of 201121118 is 811121102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 201121096 and 201121105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2423105 + ... + 2423187.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 2^201121118 is an apocalyptic number.

201121118 is a deficient number, since it is larger than the sum of its proper divisors (184983202).

201121118 is a wasteful number, since it uses less digits than its factorization.

201121118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 201121118 is about 14181.7177379893. The cubic root of 201121118 is about 585.8942351647.

The spelling of 201121118 in words is "two hundred one million, one hundred twenty-one thousand, one hundred eighteen".