1113464221 has 4 divisors (see below), whose sum is σ = 1113534844. Its totient is φ = 1113393600.

The previous prime is 1113464213. The next prime is 1113464257. The reversal of 1113464221 is 1224643111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1224643111 = 421 ⋅2908891.

It can be written as a sum of positive squares in 2 ways, for example, as 524868100 + 588596121 = 22910^2 + 24261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113464221 - 2³ = 1113464213 is a prime.

It is a super-3 number, since 3×1113464221³ (a number of 28 digits) contains 333 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 (1113464021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331 + ... + 47191.

It is an arithmetic number, because the mean of its divisors is an integer number (278383711).

Almost surely, 2^1113464221 is an apocalyptic number.

It is an amenable number.

1113464221 is a deficient number, since it is larger than the sum of its proper divisors (70623).

1113464221 is an equidigital number, since it uses as much as digits as its factorization.

1113464221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70622.

The product of its digits is 1152, while the sum is 25.

The square root of 1113464221 is about 33368.6113136283. The cubic root of 1113464221 is about 1036.4748190572.

The spelling of 1113464221 in words is "one billion, one hundred thirteen million, four hundred sixty-four thousand, two hundred twenty-one".