1110021225 has 24 divisors (see below), whose sum is σ = 1840001280. Its totient is φ = 590473920.

The previous prime is 1110021223. The next prime is 1110021233. The reversal of 1110021225 is 5221200111.

It is not a de Polignac number, because 1110021225 - 2¹ = 1110021223 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1110021223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10152 + ... + 48198.

It is an arithmetic number, because the mean of its divisors is an integer number (76666720).

Almost surely, 2^1110021225 is an apocalyptic number.

1110021225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1110021225 is a deficient number, since it is larger than the sum of its proper divisors (729980055).

1110021225 is a wasteful number, since it uses less digits than its factorization.

1110021225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38449 (or 38444 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1110021225 is about 33316.9810306996. The cubic root of 1110021225 is about 1035.4054049077.

Adding to 1110021225 its reverse (5221200111), we get a palindrome (6331221336).

The spelling of 1110021225 in words is "one billion, one hundred ten million, twenty-one thousand, two hundred twenty-five".