1030211220 has 144 divisors (see below), whose sum is σ = 3158979264. Its totient is φ = 249984000.

The previous prime is 1030211219. The next prime is 1030211227. The reversal of 1030211220 is 221120301.

It is a super-2 number, since 2×1030211220² = 2122670315627776800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1030211196 and 1030211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 979695 + ... + 980745.

It is an arithmetic number, because the mean of its divisors is an integer number (21937356).

Almost surely, 2^1030211220 is an apocalyptic number.

1030211220 is a gapful number since it is divisible by the number (10) 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 1030211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579489632).

1030211220 is an abundant number, since it is smaller than the sum of its proper divisors (2128768044).

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

1030211220 is a wasteful number, since it uses less digits than its factorization.

1030211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1030211220 is about 32096.9035889757. The cubic root of 1030211220 is about 1009.9706621547.

Adding to 1030211220 its reverse (221120301), we get a palindrome (1251331521).

The spelling of 1030211220 in words is "one billion, thirty million, two hundred eleven thousand, two hundred twenty".