10001122101020 has 48 divisors (see below), whose sum is σ = 22349536977600. Its totient is φ = 3746208052224.

The previous prime is 10001122100953. The next prime is 10001122101043. The reversal of 10001122101020 is 2010122110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001122100992 and 10001122101010.

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 15 ways as a sum of consecutive naturals, for example, 73839539 + ... + 73974858.

It is an arithmetic number, because the mean of its divisors is an integer number (465615353700).

Almost surely, 2^{10001122101020} is an apocalyptic number.

10001122101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001122101020 is an abundant number, since it is smaller than the sum of its proper divisors (12348414876580).

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

10001122101020 is a wasteful number, since it uses less digits than its factorization.

10001122101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147814622 (or 147814620 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001122101020 its reverse (2010122110001), we get a palindrome (12011244211021).

The spelling of 10001122101020 in words is "ten trillion, one billion, one hundred twenty-two million, one hundred one thousand, twenty".