2112201 has 24 divisors (see below), whose sum is σ = 3756480. Its totient is φ = 1113696.

The previous prime is 2112193. The next prime is 2112217. The reversal of 2112201 is 1022112.

It is not a de Polignac number, because 2112201 - 2³ = 2112193 is a prime.

It is a super-2 number, since 2×2112201² = 8922786128802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2112601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (156520).

2^2112201 is an apocalyptic number.

2112201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2112201 is a deficient number, since it is larger than the sum of its proper divisors (1644279).

2112201 is a wasteful number, since it uses less digits than its factorization.

2112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2112201 is about 1453.3413226080. The cubic root of 2112201 is about 128.3054432374.

Adding to 2112201 its reverse (1022112), we get a palindrome (3134313).

The spelling of 2112201 in words is "two million, one hundred twelve thousand, two hundred one".