221143304332000 has 48 divisors (see below), whose sum is σ = 543349098753552. Its totient is φ = 88457321731200.

The previous prime is 221143304331977. The next prime is 221143304332031. The reversal of 221143304332000 is 233403341122.

It is a happy number.

It is a super-2 number, since 2×221143304332000² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221143304332000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27642909042 + ... + 27642917041.

It is an arithmetic number, because the mean of its divisors is an integer number (11319772890699).

Almost surely, 2^{221143304332000} is an apocalyptic number.

221143304332000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221143304332000 is an abundant number, since it is smaller than the sum of its proper divisors (322205794421552).

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

221143304332000 is an equidigital number, since it uses as much as digits as its factorization.

221143304332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55285826108 (or 55285826090 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 221143304332000 its reverse (233403341122), we get a palindrome (221376707673122).

The spelling of 221143304332000 in words is "two hundred twenty-one trillion, one hundred forty-three billion, three hundred four million, three hundred thirty-two thousand".