71226011 has 4 divisors (see below), whose sum is σ = 72569952. Its totient is φ = 69882072.

The previous prime is 71226007. The next prime is 71226013. The reversal of 71226011 is 11062217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71226011 - 2² = 71226007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71226013) 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, 671891 + ... + 671996.

It is an arithmetic number, because the mean of its divisors is an integer number (18142488).

Almost surely, 2^71226011 is an apocalyptic number.

71226011 is a deficient number, since it is larger than the sum of its proper divisors (1343941).

71226011 is a wasteful number, since it uses less digits than its factorization.

71226011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343940.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 71226011 is about 8439.5504027170. The cubic root of 71226011 is about 414.5206853063.

Adding to 71226011 its reverse (11062217), we get a palindrome (82288228).

The spelling of 71226011 in words is "seventy-one million, two hundred twenty-six thousand, eleven".