1114211721 has 8 divisors (see below), whose sum is σ = 1697846464. Its totient is φ = 636692400.

The previous prime is 1114211717. The next prime is 1114211741. The reversal of 1114211721 is 1271124111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1114211721 - 2² = 1114211717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53057701 = 1114211721 / (1 + 1 + 1 + 4 + 2 + 1 + 1 + 7 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1114211711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26528830 + ... + 26528871.

It is an arithmetic number, because the mean of its divisors is an integer number (212230808).

Almost surely, 2^1114211721 is an apocalyptic number.

It is an amenable number.

1114211721 is a deficient number, since it is larger than the sum of its proper divisors (583634743).

1114211721 is an equidigital number, since it uses as much as digits as its factorization.

1114211721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53057711.

The product of its digits is 112, while the sum is 21.

The square root of 1114211721 is about 33379.8100803465. The cubic root of 1114211721 is about 1036.7067054539.

Adding to 1114211721 its reverse (1271124111), we get a palindrome (2385335832).

The spelling of 1114211721 in words is "one billion, one hundred fourteen million, two hundred eleven thousand, seven hundred twenty-one".