10001122220120 has 64 divisors (see below), whose sum is σ = 22539778372800. Its totient is φ = 3993828697600.

The previous prime is 10001122220119. The next prime is 10001122220147. The reversal of 10001122220120 is 2102222110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001122220095 and 10001122220104.

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, 129983021 + ... + 130059939.

It is an arithmetic number, because the mean of its divisors is an integer number (352184037075).

Almost surely, 2^{10001122220120} is an apocalyptic number.

10001122220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001122220120 is an abundant number, since it is smaller than the sum of its proper divisors (12538656152680).

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

10001122220120 is a wasteful number, since it uses less digits than its factorization.

10001122220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82268 (or 82264 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10001122220120 its reverse (2102222110001), we get a palindrome (12103344330121).

The spelling of 10001122220120 in words is "ten trillion, one billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty".