1001022200 has 48 divisors (see below), whose sum is σ = 2365559160. Its totient is φ = 393840000.

The previous prime is 1001022173. The next prime is 1001022229. The reversal of 1001022200 is 22201001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 28826 + ... + 53225.

Almost surely, 2^1001022200 is an apocalyptic number.

1001022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001022200 is an abundant number, since it is smaller than the sum of its proper divisors (1364536960).

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

1001022200 is a wasteful number, since it uses less digits than its factorization.

1001022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82128 (or 82119 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1001022200 is about 31638.9348746130. The cubic root of 1001022200 is about 1000.3406173000.

Adding to 1001022200 its reverse (22201001), we get a palindrome (1023223201).

The spelling of 1001022200 in words is "one billion, one million, twenty-two thousand, two hundred".