2020121025 has 48 divisors (see below), whose sum is σ = 3601852800. Its totient is φ = 993139200.

The previous prime is 2020121017. The next prime is 2020121029. The reversal of 2020121025 is 5201210202.

It is not a de Polignac number, because 2020121025 - 2³ = 2020121017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020120995 and 2020121013.

It is not an unprimeable number, because it can be changed into a prime (2020121029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1363285 + ... + 1364765.

It is an arithmetic number, because the mean of its divisors is an integer number (75038600).

Almost surely, 2^2020121025 is an apocalyptic number.

2020121025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2020121025 is a deficient number, since it is larger than the sum of its proper divisors (1581731775).

2020121025 is a wasteful number, since it uses less digits than its factorization.

2020121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2020121025 is about 44945.7564737763. The cubic root of 2020121025 is about 1264.1321099917.

Adding to 2020121025 its reverse (5201210202), we get a palindrome (7221331227).

The spelling of 2020121025 in words is "two billion, twenty million, one hundred twenty-one thousand, twenty-five".