611222040211 has 4 divisors (see below), whose sum is σ = 611235329752. Its totient is φ = 611208750672.

The previous prime is 611222040181. The next prime is 611222040251. The reversal of 611222040211 is 112040222116.

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 611222040211 - 2⁹ = 611222039699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611222040251) 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, 6575541 + ... + 6667846.

It is an arithmetic number, because the mean of its divisors is an integer number (152808832438).

Almost surely, 2^611222040211 is an apocalyptic number.

611222040211 is a deficient number, since it is larger than the sum of its proper divisors (13289541).

611222040211 is a wasteful number, since it uses less digits than its factorization.

611222040211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13289540.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 611222040211 its reverse (112040222116), we get a palindrome (723262262327).

The spelling of 611222040211 in words is "six hundred eleven billion, two hundred twenty-two million, forty thousand, two hundred eleven".