10202001101020 has 24 divisors (see below), whose sum is σ = 21717684538704. Its totient is φ = 4024899063936.

The previous prime is 10202001100987. The next prime is 10202001101021. The reversal of 10202001101020 is 2010110020201.

10202001101020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 10202001100988 and 10202001101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202001101021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3493834534 + ... + 3493837453.

It is an arithmetic number, because the mean of its divisors is an integer number (904903522446).

Almost surely, 2^{10202001101020} is an apocalyptic number.

10202001101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202001101020 is an abundant number, since it is smaller than the sum of its proper divisors (11515683437684).

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

10202001101020 is a wasteful number, since it uses less digits than its factorization.

10202001101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987672069 (or 6987672067 counting only the distinct ones).

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

Adding to 10202001101020 its reverse (2010110020201), we get a palindrome (12212111121221).

The spelling of 10202001101020 in words is "ten trillion, two hundred two billion, one million, one hundred one thousand, twenty".