1220440222 has 8 divisors (see below), whose sum is σ = 1865201256. Its totient is φ = 598706472.

The previous prime is 1220440201. The next prime is 1220440231. The reversal of 1220440222 is 2220440221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1220440222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5756688 + ... + 5756899.

It is an arithmetic number, because the mean of its divisors is an integer number (233150157).

Almost surely, 2^1220440222 is an apocalyptic number.

1220440222 is a deficient number, since it is larger than the sum of its proper divisors (644761034).

1220440222 is a wasteful number, since it uses less digits than its factorization.

1220440222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513642.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1220440222 is about 34934.7995843686. The cubic root of 1220440222 is about 1068.6582366319.

Adding to 1220440222 its reverse (2220440221), we get a palindrome (3440880443).

Subtracting 1220440222 from its reverse (2220440221), we obtain a palindrome (999999999).

The spelling of 1220440222 in words is "one billion, two hundred twenty million, four hundred forty thousand, two hundred twenty-two".