1001220220010 has 16 divisors (see below), whose sum is σ = 1802245372200. Its totient is φ = 400477204416.

The previous prime is 1001220220001. The next prime is 1001220220061. The reversal of 1001220220010 is 100220221001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 976908861769 + 24311358241 = 988387^2 + 155921^2 .

It is a super-4 number, since 4×1001220220010⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001220219973 and 1001220220000.

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, 968705 + ... + 1714884.

Almost surely, 2^{1001220220010} is an apocalyptic number.

1001220220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001220220010 is a deficient number, since it is larger than the sum of its proper divisors (801025152190).

1001220220010 is a wasteful number, since it uses less digits than its factorization.

1001220220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720905.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001220220010 its reverse (100220221001), we get a palindrome (1101440441011).

Subtracting from 1001220220010 its reverse (100220221001), we obtain a palindrome (900999999009).

The spelling of 1001220220010 in words is "one trillion, one billion, two hundred twenty million, two hundred twenty thousand, ten".