201121107 has 8 divisors (see below), whose sum is σ = 292539840. Its totient is φ = 121891560.

The previous prime is 201121103. The next prime is 201121111. The reversal of 201121107 is 701121102.

It is an interprime number because it is at equal distance from previous prime (201121103) and next prime (201121111).

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

It is not a de Polignac number, because 201121107 - 2² = 201121103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047257 + ... + 3047322.

It is an arithmetic number, because the mean of its divisors is an integer number (36567480).

Almost surely, 2^201121107 is an apocalyptic number.

201121107 is a deficient number, since it is larger than the sum of its proper divisors (91418733).

201121107 is a wasteful number, since it uses less digits than its factorization.

201121107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6094593.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 201121107 is about 14181.7173501660. The cubic root of 201121107 is about 585.8942244832.

Adding to 201121107 its reverse (701121102), we get a palindrome (902242209).

The spelling of 201121107 in words is "two hundred one million, one hundred twenty-one thousand, one hundred seven".