10221123201020 has 24 divisors (see below), whose sum is σ = 21473744195904. Its totient is φ = 4086661571136.

The previous prime is 10221123201011. The next prime is 10221123201059. The reversal of 10221123201020 is 2010232112201.

It is a self number, because there is not a number n which added to its sum of digits gives 10221123201020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111684947 + ... + 111776426.

It is an arithmetic number, because the mean of its divisors is an integer number (894739341496).

Almost surely, 2^{10221123201020} is an apocalyptic number.

10221123201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221123201020 is an abundant number, since it is smaller than the sum of its proper divisors (11252620994884).

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

10221123201020 is a wasteful number, since it uses less digits than its factorization.

10221123201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223463669 (or 223463667 counting only the distinct ones).

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

Adding to 10221123201020 its reverse (2010232112201), we get a palindrome (12231355313221).

The spelling of 10221123201020 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-three million, two hundred one thousand, twenty".