1114221521 has 4 divisors (see below), whose sum is σ = 1273396032. Its totient is φ = 955047012.

The previous prime is 1114221517. The next prime is 1114221523. The reversal of 1114221521 is 1251224111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1114221521 - 2² = 1114221517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1114221493 and 1114221502.

It is not an unprimeable number, because it can be changed into a prime (1114221523) 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, 79587245 + ... + 79587258.

It is an arithmetic number, because the mean of its divisors is an integer number (318349008).

Almost surely, 2^1114221521 is an apocalyptic number.

It is an amenable number.

1114221521 is a deficient number, since it is larger than the sum of its proper divisors (159174511).

1114221521 is an equidigital number, since it uses as much as digits as its factorization.

1114221521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159174510.

The product of its digits is 160, while the sum is 20.

The square root of 1114221521 is about 33379.9568753466. The cubic root of 1114221521 is about 1036.7097448810.

Adding to 1114221521 its reverse (1251224111), we get a palindrome (2365445632).

The spelling of 1114221521 in words is "one billion, one hundred fourteen million, two hundred twenty-one thousand, five hundred twenty-one".