1220122220012 has 24 divisors (see below), whose sum is σ = 2247631108800. Its totient is φ = 577942976016.

The previous prime is 1220122219973. The next prime is 1220122220063. The reversal of 1220122220012 is 2100222210221.

It is a happy number.

It is a super-2 number, since 2×1220122220012² (a number of 25 digits) contains 22 as substring.

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, 6766439 + ... + 6944417.

It is an arithmetic number, because the mean of its divisors is an integer number (93651296200).

Almost surely, 2^{1220122220012} is an apocalyptic number.

It is an amenable number.

1220122220012 is a deficient number, since it is larger than the sum of its proper divisors (1027508888788).

1220122220012 is a wasteful number, since it uses less digits than its factorization.

1220122220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268205 (or 268203 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220122220012 its reverse (2100222210221), we get a palindrome (3320344430233).

The spelling of 1220122220012 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, twelve".