4291221330 has 192 divisors, whose sum is σ = 12445954560. Its totient is φ = 1017139200.

The previous prime is 4291221313. The next prime is 4291221331. The reversal of 4291221330 is 331221924.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4291221294 and 4291221303.

It is not an unprimeable number, because it can be changed into a prime (4291221331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9956215 + ... + 9956645.

It is an arithmetic number, because the mean of its divisors is an integer number (64822680).

Almost surely, 2^4291221330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4291221330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6222977280).

4291221330 is an abundant number, since it is smaller than the sum of its proper divisors (8154733230).

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

4291221330 is a wasteful number, since it uses less digits than its factorization.

4291221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4291221330 is about 65507.4143131905. The cubic root of 4291221330 is about 1625.0259662912.

The spelling of 4291221330 in words is "four billion, two hundred ninety-one million, two hundred twenty-one thousand, three hundred thirty".