20220321330 has 128 divisors (see below), whose sum is σ = 60720537600. Its totient is φ = 4743748800.

The previous prime is 20220321281. The next prime is 20220321353. The reversal of 20220321330 is 3312302202.

It is a happy number.

It is a super-2 number, since 2×20220321330² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17740 + ... + 201879.

It is an arithmetic number, because the mean of its divisors is an integer number (474379200).

Almost surely, 2^20220321330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220321330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30360268800).

20220321330 is an abundant number, since it is smaller than the sum of its proper divisors (40500216270).

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

20220321330 is a wasteful number, since it uses less digits than its factorization.

20220321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219677 (or 219671 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20220321330 its reverse (3312302202), we get a palindrome (23532623532).

The spelling of 20220321330 in words is "twenty billion, two hundred twenty million, three hundred twenty-one thousand, three hundred thirty".