1011221003300 has 72 divisors (see below), whose sum is σ = 2216149615680. Its totient is φ = 400484073600.

The previous prime is 1011221003279. The next prime is 1011221003329. The reversal of 1011221003300 is 33001221101.

It is a super-2 number, since 2×1011221003300² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5662982 + ... + 5838818.

Almost surely, 2^{1011221003300} is an apocalyptic number.

1011221003300 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 1011221003300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108074807840).

1011221003300 is an abundant number, since it is smaller than the sum of its proper divisors (1204928612380).

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

1011221003300 is a wasteful number, since it uses less digits than its factorization.

1011221003300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176421 (or 176414 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1011221003300 its reverse (33001221101), we get a palindrome (1044222224401).

The spelling of 1011221003300 in words is "one trillion, eleven billion, two hundred twenty-one million, three thousand, three hundred".