1126726221 has 8 divisors (see below), whose sum is σ = 1590672384. Its totient is φ = 706965440.

The previous prime is 1126726177. The next prime is 1126726261. The reversal of 1126726221 is 1226276211.

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

It is a cyclic number.

It is not a de Polignac number, because 1126726221 - 2⁹ = 1126725709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126726261) 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, 11046285 + ... + 11046386.

It is an arithmetic number, because the mean of its divisors is an integer number (198834048).

Almost surely, 2^1126726221 is an apocalyptic number.

It is an amenable number.

1126726221 is a deficient number, since it is larger than the sum of its proper divisors (463946163).

1126726221 is a wasteful number, since it uses less digits than its factorization.

1126726221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22092691.

The product of its digits is 4032, while the sum is 30.

The square root of 1126726221 is about 33566.7427821050. The cubic root of 1126726221 is about 1040.5735929190.

The spelling of 1126726221 in words is "one billion, one hundred twenty-six million, seven hundred twenty-six thousand, two hundred twenty-one".