1220000222 has 24 divisors (see below), whose sum is σ = 2207306736. Its totient is φ = 495336384.

The previous prime is 1220000191. The next prime is 1220000231. The reversal of 1220000222 is 2220000221.

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 11 ways as a sum of consecutive naturals, for example, 115643 + ... + 125750.

It is an arithmetic number, because the mean of its divisors is an integer number (91971114).

Almost surely, 2^1220000222 is an apocalyptic number.

1220000222 is a deficient number, since it is larger than the sum of its proper divisors (987306514).

1220000222 is a wasteful number, since it uses less digits than its factorization.

1220000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241440 (or 241421 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1220000222 is about 34928.5015710666. The cubic root of 1220000222 is about 1068.5297949613.

Adding to 1220000222 its reverse (2220000221), we get a palindrome (3440000443).

Subtracting 1220000222 from its reverse (2220000221), we obtain a palindrome (999999999).

The spelling of 1220000222 in words is "one billion, two hundred twenty million, two hundred twenty-two", and thus it is an aban number.