1220220022 has 16 divisors (see below), whose sum is σ = 2094348960. Its totient is φ = 522315648.

The previous prime is 1220220019. The next prime is 1220220031. The reversal of 1220220022 is 2200220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220219984 and 1220220011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40963 + ... + 64174.

It is an arithmetic number, because the mean of its divisors is an integer number (130896810).

Almost surely, 2^1220220022 is an apocalyptic number.

1220220022 is a deficient number, since it is larger than the sum of its proper divisors (874128938).

1220220022 is a wasteful number, since it uses less digits than its factorization.

1220220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105975.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1220220022 is about 34931.6478569220. The cubic root of 1220220022 is about 1068.5939612736.

Adding to 1220220022 its reverse (2200220221), we get a palindrome (3420440243).

The spelling of 1220220022 in words is "one billion, two hundred twenty million, two hundred twenty thousand, twenty-two".