1001020022120 has 32 divisors (see below), whose sum is σ = 2252880864000. Its totient is φ = 400303864128.

The previous prime is 1001020022089. The next prime is 1001020022153. The reversal of 1001020022120 is 212200201001.

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, 3098720 + ... + 3406479.

It is an arithmetic number, because the mean of its divisors is an integer number (70402527000).

Almost surely, 2^{1001020022120} is an apocalyptic number.

1001020022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001020022120 is an abundant number, since it is smaller than the sum of its proper divisors (1251860841880).

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

1001020022120 is a wasteful number, since it uses less digits than its factorization.

1001020022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509057 (or 6509053 counting only the distinct ones).

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

Adding to 1001020022120 its reverse (212200201001), we get a palindrome (1213220223121).

The spelling of 1001020022120 in words is "one trillion, one billion, twenty million, twenty-two thousand, one hundred twenty".