671225122211 has 16 divisors (see below), whose sum is σ = 768910372608. Its totient is φ = 573989911200.

The previous prime is 671225122159. The next prime is 671225122219. The reversal of 671225122211 is 112221522176.

It is a cyclic number.

It is not a de Polignac number, because 671225122211 - 2¹⁸ = 671224860067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671225122219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7845776 + ... + 7930866.

It is an arithmetic number, because the mean of its divisors is an integer number (48056898288).

Almost surely, 2^671225122211 is an apocalyptic number.

671225122211 is a deficient number, since it is larger than the sum of its proper divisors (97685250397).

671225122211 is a wasteful number, since it uses less digits than its factorization.

671225122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87722.

The product of its digits is 6720, while the sum is 32.

Adding to 671225122211 its reverse (112221522176), we get a palindrome (783446644387).

The spelling of 671225122211 in words is "six hundred seventy-one billion, two hundred twenty-five million, one hundred twenty-two thousand, two hundred eleven".