2221131102330 has 192 divisors, whose sum is σ = 6313030202880. Its totient is φ = 498536793216.

The previous prime is 2221131102319. The next prime is 2221131102331. The reversal of 2221131102330 is 332011311222.

2221131102330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2221131102297 and 2221131102306.

It is not an unprimeable number, because it can be changed into a prime (2221131102331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 82119789 + ... + 82146831.

It is an arithmetic number, because the mean of its divisors is an integer number (32880365640).

Almost surely, 2^{2221131102330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221131102330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3156515101440).

2221131102330 is an abundant number, since it is smaller than the sum of its proper divisors (4091899100550).

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

2221131102330 is a wasteful number, since it uses less digits than its factorization.

2221131102330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28073 (or 28066 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2221131102330 its reverse (332011311222), we get a palindrome (2553142413552).

The spelling of 2221131102330 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, one hundred two thousand, three hundred thirty".