221233212301332 has 192 divisors, whose sum is σ = 647290266771456. Its totient is φ = 57132963363840.

The previous prime is 221233212301331. The next prime is 221233212301357. The reversal of 221233212301332 is 233103212332122.

It is a self number, because there is not a number n which added to its sum of digits gives 221233212301332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221233212301331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 270266968 + ... + 271084304.

It is an arithmetic number, because the mean of its divisors is an integer number (3371303472768).

Almost surely, 2^{221233212301332} is an apocalyptic number.

221233212301332 is a gapful number since it is divisible by the number (22) 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 221233212301332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323645133385728).

221233212301332 is an abundant number, since it is smaller than the sum of its proper divisors (426057054470124).

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

221233212301332 is a wasteful number, since it uses less digits than its factorization.

221233212301332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819046 (or 819044 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 221233212301332 its reverse (233103212332122), we get a palindrome (454336424633454).

The spelling of 221233212301332 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, two hundred twelve million, three hundred one thousand, three hundred thirty-two".