1101225015 has 48 divisors (see below), whose sum is σ = 2102630400. Its totient is φ = 528719040.

The previous prime is 1101225007. The next prime is 1101225017. The reversal of 1101225015 is 5105221011.

It is not a de Polignac number, because 1101225015 - 2³ = 1101225007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101225017) 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, 40186 + ... + 61784.

It is an arithmetic number, because the mean of its divisors is an integer number (43804800).

Almost surely, 2^1101225015 is an apocalyptic number.

1101225015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1101225015 is a deficient number, since it is larger than the sum of its proper divisors (1001405385).

1101225015 is a wasteful number, since it uses less digits than its factorization.

1101225015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21724 (or 21721 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1101225015 is about 33184.7105607387. The cubic root of 1101225015 is about 1032.6631728778.

Adding to 1101225015 its reverse (5105221011), we get a palindrome (6206446026).

The spelling of 1101225015 in words is "one billion, one hundred one million, two hundred twenty-five thousand, fifteen".