1111221325 has 12 divisors (see below), whose sum is σ = 1378327828. Its totient is φ = 888710400.

The previous prime is 1111221313. The next prime is 1111221341. The reversal of 1111221325 is 5231221111.

It can be written as a sum of positive squares in 6 ways, for example, as 31573161 + 1079648164 = 5619^2 + 32858^2 .

It is not a de Polignac number, because 1111221325 - 2¹⁵ = 1111188557 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 163189 + ... + 169861.

Almost surely, 2^1111221325 is an apocalyptic number.

It is an amenable number.

1111221325 is a deficient number, since it is larger than the sum of its proper divisors (267106503).

1111221325 is an equidigital number, since it uses as much as digits as its factorization.

1111221325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13344 (or 13339 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 1111221325 is about 33334.9865006722. The cubic root of 1111221325 is about 1035.7784135368.

Adding to 1111221325 its reverse (5231221111), we get a palindrome (6342442436).

The spelling of 1111221325 in words is "one billion, one hundred eleven million, two hundred twenty-one thousand, three hundred twenty-five".