1300221111 has 16 divisors (see below), whose sum is σ = 1981793024. Its totient is φ = 742794624.

The previous prime is 1300221101. The next prime is 1300221133. The reversal of 1300221111 is 1111220031.

It is not a de Polignac number, because 1300221111 - 2²⁵ = 1266666679 is a prime.

It is a super-4 number, since 4×1300221111⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300221101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158175 + ... + 166191.

It is an arithmetic number, because the mean of its divisors is an integer number (123862064).

Almost surely, 2^1300221111 is an apocalyptic number.

1300221111 is a deficient number, since it is larger than the sum of its proper divisors (681571913).

1300221111 is an equidigital number, since it uses as much as digits as its factorization.

1300221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15750.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1300221111 is about 36058.5788821468. The cubic root of 1300221111 is about 1091.4547562128.

Adding to 1300221111 its reverse (1111220031), we get a palindrome (2411441142).

The spelling of 1300221111 in words is "one billion, three hundred million, two hundred twenty-one thousand, one hundred eleven".