1200222220120 has 64 divisors (see below), whose sum is σ = 3366857145600. Its totient is φ = 374095236480.

The previous prime is 1200222220117. The next prime is 1200222220129. The reversal of 1200222220120 is 210222220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200222220094 and 1200222220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200222220129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194838190 + ... + 194844349.

It is an arithmetic number, because the mean of its divisors is an integer number (52607142900).

Almost surely, 2^{1200222220120} is an apocalyptic number.

1200222220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200222220120 is an abundant number, since it is smaller than the sum of its proper divisors (2166634925480).

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

1200222220120 is a wasteful number, since it uses less digits than its factorization.

1200222220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389682568 (or 389682564 counting only the distinct ones).

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

Adding to 1200222220120 its reverse (210222220021), we get a palindrome (1410444440141).

Subtracting from 1200222220120 its reverse (210222220021), we obtain a palindrome (990000000099).

The spelling of 1200222220120 in words is "one trillion, two hundred billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty".