1121221434300 has 144 divisors (see below), whose sum is σ = 3547639603200. Its totient is φ = 271146355200.

The previous prime is 1121221434287. The next prime is 1121221434313. The reversal of 1121221434300 is 34341221211.

It is an interprime number because it is at equal distance from previous prime (1121221434287) and next prime (1121221434313).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 934341 + ... + 1765059.

Almost surely, 2^{1121221434300} is an apocalyptic number.

1121221434300 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 1121221434300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773819801600).

1121221434300 is an abundant number, since it is smaller than the sum of its proper divisors (2426418168900).

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

1121221434300 is a wasteful number, since it uses less digits than its factorization.

1121221434300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831156 (or 831149 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1121221434300 its reverse (34341221211), we get a palindrome (1155562655511).

The spelling of 1121221434300 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, four hundred thirty-four thousand, three hundred".