2451222 has 20 divisors (see below), whose sum is σ = 5492916. Its totient is φ = 817020.

The previous prime is 2451221. The next prime is 2451223. The reversal of 2451222 is 2221542.

2451222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2451221) and next prime (2451223).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2451195 and 2451204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451221) 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 9 ways as a sum of consecutive naturals, for example, 7404 + ... + 7727.

2^2451222 is an apocalyptic number.

2451222 is an abundant number, since it is smaller than the sum of its proper divisors (3041694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451222 is a wasteful number, since it uses less digits than its factorization.

2451222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15145 (or 15136 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2451222 is about 1565.6378891685. The cubic root of 2451222 is about 134.8323845681.

Adding to 2451222 its product of digits (320), we get a palindrome (2451542).

Adding to 2451222 its reverse (2221542), we get a palindrome (4672764).

The spelling of 2451222 in words is "two million, four hundred fifty-one thousand, two hundred twenty-two".