1220020022 has 16 divisors (see below), whose sum is σ = 1991123232. Its totient is φ = 557280000.

The previous prime is 1220020013. The next prime is 1220020093. The reversal of 1220020022 is 2200200221.

It is a junction number, because it is equal to n+sod(n) for n = 1220019985 and 1220020012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239354 + ... + 244397.

It is an arithmetic number, because the mean of its divisors is an integer number (124445202).

Almost surely, 2^1220020022 is an apocalyptic number.

1220020022 is a deficient number, since it is larger than the sum of its proper divisors (771103210).

1220020022 is a wasteful number, since it uses less digits than its factorization.

1220020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483863.

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

The square root of 1220020022 is about 34928.7850060663. The cubic root of 1220020022 is about 1068.5355755000.

Adding to 1220020022 its reverse (2200200221), we get a palindrome (3420220243).

The spelling of 1220020022 in words is "one billion, two hundred twenty million, twenty thousand, twenty-two".