391170222001 has 16 divisors (see below), whose sum is σ = 434158204480. Its totient is φ = 350145633600.

The previous prime is 391170221993. The next prime is 391170222013. The reversal of 391170222001 is 100222071193.

It is a cyclic number.

It is not a de Polignac number, because 391170222001 - 2³ = 391170221993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (391170222061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439450 + ... + 2594851.

It is an arithmetic number, because the mean of its divisors is an integer number (27134887780).

Almost surely, 2^391170222001 is an apocalyptic number.

It is an amenable number.

391170222001 is a deficient number, since it is larger than the sum of its proper divisors (42987982479).

391170222001 is a wasteful number, since it uses less digits than its factorization.

391170222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034496.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 391170222001 its reverse (100222071193), we get a palindrome (491392293194).

The spelling of 391170222001 in words is "three hundred ninety-one billion, one hundred seventy million, two hundred twenty-two thousand, one".