1021030220 has 24 divisors (see below), whose sum is σ = 2450472864. Its totient is φ = 350067456.

The previous prime is 1021030211. The next prime is 1021030247. The reversal of 1021030220 is 220301201.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3646397 + ... + 3646676.

It is an arithmetic number, because the mean of its divisors is an integer number (102103036).

Almost surely, 2^1021030220 is an apocalyptic number.

1021030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021030220 is an abundant number, since it is smaller than the sum of its proper divisors (1429442644).

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

1021030220 is a wasteful number, since it uses less digits than its factorization.

1021030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293089 (or 7293087 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1021030220 is about 31953.5634945463. The cubic root of 1021030220 is about 1006.9614984160.

Adding to 1021030220 its reverse (220301201), we get a palindrome (1241331421).

The spelling of 1021030220 in words is "one billion, twenty-one million, thirty thousand, two hundred twenty".