221343301332 has 144 divisors (see below), whose sum is σ = 599225582592. Its totient is φ = 68647772160.

The previous prime is 221343301307. The next prime is 221343301351. The reversal of 221343301332 is 233103343122.

221343301332 is a `hidden beast` number, since 2 + 21 + 3 + 4 + 3 + 301 + 332 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 221343301296 and 221343301305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19047588 + ... + 19059204.

It is an arithmetic number, because the mean of its divisors is an integer number (4161288768).

Almost surely, 2^221343301332 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 221343301332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299612791296).

221343301332 is an abundant number, since it is smaller than the sum of its proper divisors (377882281260).

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

221343301332 is a wasteful number, since it uses less digits than its factorization.

221343301332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11998 (or 11993 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 221343301332 its reverse (233103343122), we get a palindrome (454446644454).

The spelling of 221343301332 in words is "two hundred twenty-one billion, three hundred forty-three million, three hundred one thousand, three hundred thirty-two".