221150411240 has 256 divisors, whose sum is σ = 581124741120. Its totient is φ = 74854563840.

The previous prime is 221150411239. The next prime is 221150411243. The reversal of 221150411240 is 42114051122.

It is a super-2 number, since 2×221150411240² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221150411243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 328603544 + ... + 328604216.

It is an arithmetic number, because the mean of its divisors is an integer number (2270018520).

Almost surely, 2^221150411240 is an apocalyptic number.

221150411240 is a gapful number since it is divisible by the number (20) 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 221150411240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290562370560).

221150411240 is an abundant number, since it is smaller than the sum of its proper divisors (359974329880).

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

221150411240 is a wasteful number, since it uses less digits than its factorization.

221150411240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 221150411240 its reverse (42114051122), we get a palindrome (263264462362).

The spelling of 221150411240 in words is "two hundred twenty-one billion, one hundred fifty million, four hundred eleven thousand, two hundred forty".