2115020225 has 12 divisors (see below), whose sum is σ = 2623332096. Its totient is φ = 1691560080.

The previous prime is 2115020213. The next prime is 2115020249. The reversal of 2115020225 is 5220205112.

It is a happy number.

It is not a de Polignac number, because 2115020225 - 2⁶ = 2115020161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2115020197 and 2115020206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107504 + ... + 125646.

It is an arithmetic number, because the mean of its divisors is an integer number (218611008).

Almost surely, 2^2115020225 is an apocalyptic number.

2115020225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2115020225 is a deficient number, since it is larger than the sum of its proper divisors (508311871).

2115020225 is a wasteful number, since it uses less digits than its factorization.

2115020225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22816 (or 22811 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2115020225 is about 45989.3490386633. The cubic root of 2115020225 is about 1283.6250237433.

Adding to 2115020225 its reverse (5220205112), we get a palindrome (7335225337).

The spelling of 2115020225 in words is "two billion, one hundred fifteen million, twenty thousand, two hundred twenty-five".