1200221120120 has 64 divisors (see below), whose sum is σ = 3119291272800. Its totient is φ = 410770862080.

The previous prime is 1200221120117. The next prime is 1200221120123. The reversal of 1200221120120 is 210211220021.

It is an interprime number because it is at equal distance from previous prime (1200221120117) and next prime (1200221120123).

It is a junction number, because it is equal to n+sod(n) for n = 1200221120095 and 1200221120104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221120123) 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, 80221205 + ... + 80236164.

Almost surely, 2^{1200221120120} is an apocalyptic number.

1200221120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200221120120 is an abundant number, since it is smaller than the sum of its proper divisors (1919070152680).

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

1200221120120 is a wasteful number, since it uses less digits than its factorization.

1200221120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160457408 (or 160457404 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200221120120 its reverse (210211220021), we get a palindrome (1410432340141).

Subtracting from 1200221120120 its reverse (210211220021), we obtain a palindrome (990009900099).

The spelling of 1200221120120 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty".