2091122 has 12 divisors (see below), whose sum is σ = 3448158. Its totient is φ = 950400.

The previous prime is 2091097. The next prime is 2091139. The reversal of 2091122 is 2211902.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 14641 = 1441^2 + 121^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2091122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4079 + ... + 4562.

2^2091122 is an apocalyptic number.

2091122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2091122 is a deficient number, since it is larger than the sum of its proper divisors (1357036).

2091122 is a wasteful number, since it uses less digits than its factorization.

2091122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665 (or 8654 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2091122 is about 1446.0712292277. The cubic root of 2091122 is about 127.8772015654.

It can be divided in two parts, 209 and 1122, that added together give a palindrome (1331).

The spelling of 2091122 in words is "two million, ninety-one thousand, one hundred twenty-two".