201112690 has 16 divisors (see below), whose sum is σ = 377742528. Its totient is φ = 76947376.

The previous prime is 201112679. The next prime is 201112699. The reversal of 201112690 is 96211102.

It is a super-2 number, since 2×201112690² = 80892628158072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201112699) 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, 436972 + ... + 437431.

It is an arithmetic number, because the mean of its divisors is an integer number (23608908).

Almost surely, 2^201112690 is an apocalyptic number.

201112690 is a deficient number, since it is larger than the sum of its proper divisors (176629838).

201112690 is a wasteful number, since it uses less digits than its factorization.

201112690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874433.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 201112690 is about 14181.4205917461. The cubic root of 201112690 is about 585.8860510654.

Adding to 201112690 its reverse (96211102), we get a palindrome (297323792).

It can be divided in two parts, 20111 and 2690, that added together give a square (22801 = 151²).

The spelling of 201112690 in words is "two hundred one million, one hundred twelve thousand, six hundred ninety".