1220000022222 has 16 divisors (see below), whose sum is σ = 2452261353600. Its totient is φ = 404623122552.

The previous prime is 1220000022217. The next prime is 1220000022233. The reversal of 1220000022222 is 2222200000221.

1220000022222 is a modest number, since divided by 22222 gives 122 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510886588 + ... + 510888975.

It is an arithmetic number, because the mean of its divisors is an integer number (153266334600).

Almost surely, 2^{1220000022222} is an apocalyptic number.

1220000022222 is an abundant number, since it is smaller than the sum of its proper divisors (1232261331378).

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

1220000022222 is a wasteful number, since it uses less digits than its factorization.

1220000022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021775767.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 1220000022222 its reverse (2222200000221), we get a palindrome (3442200022443).

The spelling of 1220000022222 in words is "one trillion, two hundred twenty billion, twenty-two thousand, two hundred twenty-two".