1202102112020 has 24 divisors (see below), whose sum is σ = 2526130618368. Its totient is φ = 480513952800.

The previous prime is 1202102111983. The next prime is 1202102112077. The reversal of 1202102112020 is 202112012021.

It is a junction number, because it is equal to n+sod(n) for n = 1202102111986 and 1202102112004.

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, 20400596 + ... + 20459435.

It is an arithmetic number, because the mean of its divisors is an integer number (105255442432).

Almost surely, 2^{1202102112020} is an apocalyptic number.

1202102112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202102112020 is an abundant number, since it is smaller than the sum of its proper divisors (1324028506348).

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

1202102112020 is a wasteful number, since it uses less digits than its factorization.

1202102112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40861511 (or 40861509 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1202102112020 its reverse (202112012021), we get a palindrome (1404214124041).

Subtracting from 1202102112020 its reverse (202112012021), we obtain a palindrome (999990099999).

The spelling of 1202102112020 in words is "one trillion, two hundred two billion, one hundred two million, one hundred twelve thousand, twenty".