8150221380 has 96 divisors (see below), whose sum is σ = 27453404160. Its totient is φ = 1764858240.

The previous prime is 8150221349. The next prime is 8150221423. The reversal of 8150221380 is 831220518.

It is a super-2 number, since 2×8150221380² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502686 + ... + 518645.

It is an arithmetic number, because the mean of its divisors is an integer number (285972960).

Almost surely, 2^8150221380 is an apocalyptic number.

It is an amenable number.

8150221380 is an abundant number, since it is smaller than the sum of its proper divisors (19303182780).

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

8150221380 is a wasteful number, since it uses less digits than its factorization.

8150221380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021369 (or 1021367 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 8150221380 is about 90278.5765284323. The cubic root of 8150221380 is about 2012.4408998758.

Adding to 8150221380 its reverse (831220518), we get a palindrome (8981441898).

The spelling of 8150221380 in words is "eight billion, one hundred fifty million, two hundred twenty-one thousand, three hundred eighty".