1121200220000 has 120 divisors (see below), whose sum is σ = 3152366932176. Its totient is φ = 384411456000.

The previous prime is 1121200219957. The next prime is 1121200220017. The reversal of 1121200220000 is 220021211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3864287 + ... + 4144286.

Almost surely, 2^{1121200220000} is an apocalyptic number.

1121200220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121200220000 is an abundant number, since it is smaller than the sum of its proper divisors (2031166712176).

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

1121200220000 is an frugal number, since it uses more digits than its factorization.

1121200220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008610 (or 8008587 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1121200220000 its reverse (220021211), we get a palindrome (1121420241211).

The spelling of 1121200220000 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred twenty thousand".