1121222300 has 108 divisors (see below), whose sum is σ = 2815679160. Its totient is φ = 386179200.

The previous prime is 1121222279. The next prime is 1121222327. The reversal of 1121222300 is 32221211.

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 35 ways as a sum of consecutive naturals, for example, 227462 + ... + 232338.

Almost surely, 2^1121222300 is an apocalyptic number.

1121222300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407839580).

1121222300 is an abundant number, since it is smaller than the sum of its proper divisors (1694456860).

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

1121222300 is a wasteful number, since it uses less digits than its factorization.

1121222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 4914 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1121222300 is about 33484.6576807946. The cubic root of 1121222300 is about 1038.8764678766.

Adding to 1121222300 its reverse (32221211), we get a palindrome (1153443511).

The spelling of 1121222300 in words is "one billion, one hundred twenty-one million, two hundred twenty-two thousand, three hundred".