10203112122020 has 96 divisors (see below), whose sum is σ = 22117985971200. Its totient is φ = 3951164825600.

The previous prime is 10203112122011. The next prime is 10203112122037. The reversal of 10203112122020 is 2022121130201.

It is a super-2 number, since 2×10203112122020² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10203112122020.

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 31 ways as a sum of consecutive naturals, for example, 70235060 + ... + 70380180.

It is an arithmetic number, because the mean of its divisors is an integer number (230395687200).

Almost surely, 2^{10203112122020} is an apocalyptic number.

10203112122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10203112122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11058992985600).

10203112122020 is an abundant number, since it is smaller than the sum of its proper divisors (11914873849180).

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

10203112122020 is a wasteful number, since it uses less digits than its factorization.

10203112122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145829 (or 145827 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10203112122020 its reverse (2022121130201), we get a palindrome (12225233252221).

The spelling of 10203112122020 in words is "ten trillion, two hundred three billion, one hundred twelve million, one hundred twenty-two thousand, twenty".