1015101101225 has 6 divisors (see below), whose sum is σ = 1258725365550. Its totient is φ = 812080880960.

The previous prime is 1015101101213. The next prime is 1015101101227. The reversal of 1015101101225 is 5221011015101.

It can be written as a sum of positive squares in 3 ways, for example, as 12787764889 + 1002313336336 = 113083^2 + 1001156^2 .

It is not a de Polignac number, because 1015101101225 - 2²⁰ = 1015100052649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1015101101197 and 1015101101206.

It is not an unprimeable number, because it can be changed into a prime (1015101101227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20302022000 + ... + 20302022049.

It is an arithmetic number, because the mean of its divisors is an integer number (209787560925).

Almost surely, 2^{1015101101225} is an apocalyptic number.

It is an amenable number.

1015101101225 is a deficient number, since it is larger than the sum of its proper divisors (243624264325).

1015101101225 is an equidigital number, since it uses as much as digits as its factorization.

1015101101225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40604044059 (or 40604044054 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 1015101101225 its reverse (5221011015101), we get a palindrome (6236112116326).

The spelling of 1015101101225 in words is "one trillion, fifteen billion, one hundred one million, one hundred one thousand, two hundred twenty-five".