10020120021100 has 72 divisors (see below), whose sum is σ = 25651507309568. Its totient is φ = 3324648110400.

The previous prime is 10020120020983. The next prime is 10020120021133. The reversal of 10020120021100 is 112002102001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230856642 + ... + 230900041.

Almost surely, 2^{10020120021100} is an apocalyptic number.

10020120021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020120021100 is an abundant number, since it is smaller than the sum of its proper divisors (15631387288468).

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

10020120021100 is a wasteful number, since it uses less digits than its factorization.

10020120021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461756735 (or 461756728 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10020120021100 its reverse (112002102001), we get a palindrome (10132122123101).

The spelling of 10020120021100 in words is "ten trillion, twenty billion, one hundred twenty million, twenty-one thousand, one hundred".