2261122 has 4 divisors (see below), whose sum is σ = 3391686. Its totient is φ = 1130560.

The previous prime is 2261117. The next prime is 2261131. The reversal of 2261122 is 2211622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 594441 = 1291^2 + 771^2 .

It is a super-2 number, since 2×2261122² = 10225345397768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261096 and 2261105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565279 + ... + 565282.

2^2261122 is an apocalyptic number.

2261122 is a deficient number, since it is larger than the sum of its proper divisors (1130564).

2261122 is a wasteful number, since it uses less digits than its factorization.

2261122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130563.

The product of its digits is 96, while the sum is 16.

The square root of 2261122 is about 1503.7027631816. The cubic root of 2261122 is about 131.2526251931.

Adding to 2261122 its reverse (2211622), we get a palindrome (4472744).

The spelling of 2261122 in words is "two million, two hundred sixty-one thousand, one hundred twenty-two".