1134421221 has 8 divisors (see below), whose sum is σ = 1553441824. Its totient is φ = 735840720.

The previous prime is 1134421207. The next prime is 1134421231. The reversal of 1134421221 is 1221244311.

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

It is not a de Polignac number, because 1134421221 - 2¹³ = 1134413029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134421231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5109895 + ... + 5110116.

It is an arithmetic number, because the mean of its divisors is an integer number (194180228).

Almost surely, 2^1134421221 is an apocalyptic number.

It is an amenable number.

1134421221 is a deficient number, since it is larger than the sum of its proper divisors (419020603).

1134421221 is a wasteful number, since it uses less digits than its factorization.

1134421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220051.

The product of its digits is 384, while the sum is 21.

The square root of 1134421221 is about 33681.1701251604. The cubic root of 1134421221 is about 1042.9370934808.

Adding to 1134421221 its reverse (1221244311), we get a palindrome (2355665532).

The spelling of 1134421221 in words is "one billion, one hundred thirty-four million, four hundred twenty-one thousand, two hundred twenty-one".