2233121100 has 216 divisors, whose sum is σ = 7622668368. Its totient is φ = 503193600.

The previous prime is 2233121089. The next prime is 2233121119. The reversal of 2233121100 is 11213322.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2233121100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1072060 + ... + 1074140.

Almost surely, 2^2233121100 is an apocalyptic number.

2233121100 is a gapful number since it is divisible by the number (20) 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 2233121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3811334184).

2233121100 is an abundant number, since it is smaller than the sum of its proper divisors (5389547268).

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

2233121100 is a wasteful number, since it uses less digits than its factorization.

2233121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2233121100 is about 47255.9107414088. The cubic root of 2233121100 is about 1307.0857853362.

Adding to 2233121100 its reverse (11213322), we get a palindrome (2244334422).

The spelling of 2233121100 in words is "two billion, two hundred thirty-three million, one hundred twenty-one thousand, one hundred".