1220222122 has 16 divisors (see below), whose sum is σ = 2099954880. Its totient is φ = 520915968.

The previous prime is 1220222119. The next prime is 1220222173. The reversal of 1220222122 is 2212220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220222096 and 1220222105.

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, 165972 + ... + 173167.

It is an arithmetic number, because the mean of its divisors is an integer number (131247180).

Almost surely, 2^1220222122 is an apocalyptic number.

1220222122 is a deficient number, since it is larger than the sum of its proper divisors (879732758).

1220222122 is a wasteful number, since it uses less digits than its factorization.

1220222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339405.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1220222122 is about 34931.6779156112. The cubic root of 1220222122 is about 1068.5945742904.

Adding to 1220222122 its reverse (2212220221), we get a palindrome (3432442343).

The spelling of 1220222122 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-two".