1220222012120 has 32 divisors (see below), whose sum is σ = 2746208026800. Its totient is φ = 487962849408.

The previous prime is 1220222011993. The next prime is 1220222012147. The reversal of 1220222012120 is 212102220221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3779090 + ... + 4089249.

Almost surely, 2^{1220222012120} is an apocalyptic number.

1220222012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220222012120 is an abundant number, since it is smaller than the sum of its proper divisors (1525986014680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220222012120 is a wasteful number, since it uses less digits than its factorization.

1220222012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872227 (or 7872223 counting only the distinct ones).

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

Adding to 1220222012120 its reverse (212102220221), we get a palindrome (1432324232341).

The spelling of 1220222012120 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, twelve thousand, one hundred twenty".