2221321133552 has 80 divisors (see below), whose sum is σ = 4593870988320. Its totient is φ = 1037455257600.

The previous prime is 2221321133513. The next prime is 2221321133569. The reversal of 2221321133552 is 2553311231222.

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 15 ways as a sum of consecutive naturals, for example, 76792052 + ... + 76820972.

It is an arithmetic number, because the mean of its divisors is an integer number (57423387354).

Almost surely, 2^{2221321133552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221321133552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296935494160).

2221321133552 is an abundant number, since it is smaller than the sum of its proper divisors (2372549854768).

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

2221321133552 is a wasteful number, since it uses less digits than its factorization.

2221321133552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32482 (or 32476 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 2221321133552 its reverse (2553311231222), we get a palindrome (4774632364774).

The spelling of 2221321133552 in words is "two trillion, two hundred twenty-one billion, three hundred twenty-one million, one hundred thirty-three thousand, five hundred fifty-two".