2251222 has 8 divisors (see below), whose sum is σ = 3455496. Its totient is φ = 1099392.

The previous prime is 2251213. The next prime is 2251229. The reversal of 2251222 is 2221522.

2251222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2251196 and 2251205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13003 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (431937).

2^2251222 is an apocalyptic number.

2251222 is a deficient number, since it is larger than the sum of its proper divisors (1204274).

2251222 is a wasteful number, since it uses less digits than its factorization.

2251222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26222.

The product of its digits is 160, while the sum is 16.

The square root of 2251222 is about 1500.4072780415. The cubic root of 2251222 is about 131.0607879799.

Adding to 2251222 its reverse (2221522), we get a palindrome (4472744).

The spelling of 2251222 in words is "two million, two hundred fifty-one thousand, two hundred twenty-two".