20330211220 has 48 divisors (see below), whose sum is σ = 47035852416. Its totient is φ = 7319600000.

The previous prime is 20330211199. The next prime is 20330211227. The reversal of 20330211220 is 2211203302.

It is a junction number, because it is equal to n+sod(n) for n = 20330211194 and 20330211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435256 + ... + 479695.

It is an arithmetic number, because the mean of its divisors is an integer number (979913592).

Almost surely, 2^20330211220 is an apocalyptic number.

20330211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330211220 is an abundant number, since it is smaller than the sum of its proper divisors (26705641196).

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

20330211220 is a wasteful number, since it uses less digits than its factorization.

20330211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915072 (or 915070 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20330211220 its reverse (2211203302), we get a palindrome (22541414522).

The spelling of 20330211220 in words is "twenty billion, three hundred thirty million, two hundred eleven thousand, two hundred twenty".