1220220222212 has 48 divisors (see below), whose sum is σ = 2219359134720. Its totient is φ = 586400860800.

The previous prime is 1220220222211. The next prime is 1220220222257. The reversal of 1220220222212 is 2122220220221.

It is not an unprimeable number, because it can be changed into a prime (1220220222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10625114 + ... + 10739342.

It is an arithmetic number, because the mean of its divisors is an integer number (46236648640).

Almost surely, 2^{1220220222212} is an apocalyptic number.

It is an amenable number.

1220220222212 is a deficient number, since it is larger than the sum of its proper divisors (999138912508).

1220220222212 is a wasteful number, since it uses less digits than its factorization.

1220220222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114852 (or 114850 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220220222212 its reverse (2122220220221), we get a palindrome (3342440442433).

The spelling of 1220220222212 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twelve".