22221145201332 has 384 divisors, whose sum is σ = 69138684518400. Its totient is φ = 5383045324800.

The previous prime is 22221145201271. The next prime is 22221145201349. The reversal of 22221145201332 is 23310254112222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221145201332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1767926344 + ... + 1767938912.

It is an arithmetic number, because the mean of its divisors is an integer number (180048657600).

Almost surely, 2^{22221145201332} is an apocalyptic number.

22221145201332 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 22221145201332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34569342259200).

22221145201332 is an abundant number, since it is smaller than the sum of its proper divisors (46917539317068).

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

22221145201332 is a wasteful number, since it uses less digits than its factorization.

22221145201332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14687 (or 14685 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 22221145201332 its reverse (23310254112222), we get a palindrome (45531399313554).

The spelling of 22221145201332 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred forty-five million, two hundred one thousand, three hundred thirty-two".