11451222 has 24 divisors (see below), whose sum is σ = 24873264. Its totient is φ = 3807504.

The previous prime is 11451211. The next prime is 11451227. The reversal of 11451222 is 22215411.

It is a super-2 number, since 2×11451222² = 262260970586568, which contains 22 as substring.

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 = 11451195 and 11451204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13503 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (1036386).

Almost surely, 2^11451222 is an apocalyptic number.

11451222 is an abundant number, since it is smaller than the sum of its proper divisors (13422042).

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

11451222 is a wasteful number, since it uses less digits than its factorization.

11451222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1601 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 11451222 is about 3383.9654253553. The cubic root of 11451222 is about 225.3982871426.

Adding to 11451222 its reverse (22215411), we get a palindrome (33666633).

The spelling of 11451222 in words is "eleven million, four hundred fifty-one thousand, two hundred twenty-two".