1001302220 has 24 divisors (see below), whose sum is σ = 2113751808. Its totient is φ = 398422400.

The previous prime is 1001302219. The next prime is 1001302249. The reversal of 1001302220 is 222031001.

It is a happy number.

It is a super-2 number, since 2×1001302220² = 2005212271553856800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 127241 + ... + 134880.

It is an arithmetic number, because the mean of its divisors is an integer number (88072992).

Almost surely, 2^1001302220 is an apocalyptic number.

1001302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001302220 is an abundant number, since it is smaller than the sum of its proper divisors (1112449588).

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

1001302220 is a wasteful number, since it uses less digits than its factorization.

1001302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262321 (or 262319 counting only the distinct ones).

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

The square root of 1001302220 is about 31643.3598089710. The cubic root of 1001302220 is about 1000.4338850499.

Adding to 1001302220 its reverse (222031001), we get a palindrome (1223333221).

The spelling of 1001302220 in words is "one billion, one million, three hundred two thousand, two hundred twenty".