10202001111020 has 24 divisors (see below), whose sum is σ = 21426521608800. Its totient is φ = 4080358677632.

The previous prime is 10202001111019. The next prime is 10202001111037. The reversal of 10202001111020 is 2011110020201.

It is a junction number, because it is equal to n+sod(n) for n = 10202001110992 and 10202001111010.

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, 27421025 + ... + 27790584.

It is an arithmetic number, because the mean of its divisors is an integer number (892771733700).

Almost surely, 2^{10202001111020} is an apocalyptic number.

10202001111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202001111020 is an abundant number, since it is smaller than the sum of its proper divisors (11224520497780).

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

10202001111020 is a wasteful number, since it uses less digits than its factorization.

10202001111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55220857 (or 55220855 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10202001111020 its reverse (2011110020201), we get a palindrome (12213111131221).

The spelling of 10202001111020 in words is "ten trillion, two hundred two billion, one million, one hundred eleven thousand, twenty".