2101025215 has 8 divisors (see below), whose sum is σ = 2521726128. Its totient is φ = 1680489600.

The previous prime is 2101025167. The next prime is 2101025219. The reversal of 2101025215 is 5125201012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101025215 - 2¹¹ = 2101023167 is a prime.

It is a super-3 number, since 3×2101025215³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101025192 and 2101025201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101025219) 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, 11386 + ... + 65815.

It is an arithmetic number, because the mean of its divisors is an integer number (315215766).

Almost surely, 2^2101025215 is an apocalyptic number.

2101025215 is a deficient number, since it is larger than the sum of its proper divisors (420700913).

2101025215 is an equidigital number, since it uses as much as digits as its factorization.

2101025215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82649.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 2101025215 is about 45836.9415973623. The cubic root of 2101025215 is about 1280.7875229843.

Adding to 2101025215 its reverse (5125201012), we get a palindrome (7226226227).

It can be divided in two parts, 21010 and 25215, that added together give a square (46225 = 215²).

The spelling of 2101025215 in words is "two billion, one hundred one million, twenty-five thousand, two hundred fifteen".