1220212120222 has 8 divisors (see below), whose sum is σ = 1926650716200. Its totient is φ = 577995214824.

The previous prime is 1220212120219. The next prime is 1220212120273. The reversal of 1220212120222 is 2220212120221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1220212120222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16055422597 + ... + 16055422672.

It is an arithmetic number, because the mean of its divisors is an integer number (240831339525).

Almost surely, 2^{1220212120222} is an apocalyptic number.

1220212120222 is a deficient number, since it is larger than the sum of its proper divisors (706438595978).

1220212120222 is a wasteful number, since it uses less digits than its factorization.

1220212120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110845290.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1220212120222 its reverse (2220212120221), we get a palindrome (3440424240443).

Subtracting 1220212120222 from its reverse (2220212120221), we obtain a palindrome (999999999999).

The spelling of 1220212120222 in words is "one trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-two".