201112261 has 8 divisors (see below), whose sum is σ = 243362880. Its totient is φ = 162241728.

The previous prime is 201112259. The next prime is 201112271. The reversal of 201112261 is 162211102.

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

It is a cyclic number.

It is not a de Polignac number, because 201112261 - 2¹ = 201112259 is a prime.

It is a super-2 number, since 2×201112261² = 80892283049064242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844891 + ... + 845128.

It is an arithmetic number, because the mean of its divisors is an integer number (30420360).

Almost surely, 2^201112261 is an apocalyptic number.

It is an amenable number.

201112261 is a deficient number, since it is larger than the sum of its proper divisors (42250619).

201112261 is a wasteful number, since it uses less digits than its factorization.

201112261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690043.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 201112261 is about 14181.4054663140. The cubic root of 201112261 is about 585.8856344743.

Adding to 201112261 its reverse (162211102), we get a palindrome (363323363).

The spelling of 201112261 in words is "two hundred one million, one hundred twelve thousand, two hundred sixty-one".