1455221222 has 32 divisors (see below), whose sum is σ = 2749055232. Its totient is φ = 562300704.

The previous prime is 1455221171. The next prime is 1455221239. The reversal of 1455221222 is 2221225541.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1455221191 and 1455221200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85148 + ... + 100799.

It is an arithmetic number, because the mean of its divisors is an integer number (85907976).

Almost surely, 2^1455221222 is an apocalyptic number.

1455221222 is a deficient number, since it is larger than the sum of its proper divisors (1293834010).

1455221222 is a wasteful number, since it uses less digits than its factorization.

1455221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186012.

The product of its digits is 3200, while the sum is 26.

The square root of 1455221222 is about 38147.3619271372. The cubic root of 1455221222 is about 1133.2081079825.

Adding to 1455221222 its reverse (2221225541), we get a palindrome (3676446763).

The spelling of 1455221222 in words is "one billion, four hundred fifty-five million, two hundred twenty-one thousand, two hundred twenty-two".