6401120120211 has 8 divisors (see below), whose sum is σ = 8560611803584. Its totient is φ = 4254520925160.

The previous prime is 6401120120099. The next prime is 6401120120249. The reversal of 6401120120211 is 1120210211046.

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

It is not a de Polignac number, because 6401120120211 - 2¹⁵ = 6401120087443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401120120251) 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 7 ways as a sum of consecutive naturals, for example, 3223120921 + ... + 3223122906.

It is an arithmetic number, because the mean of its divisors is an integer number (1070076475448).

Almost surely, 2^{6401120120211} is an apocalyptic number.

6401120120211 is a deficient number, since it is larger than the sum of its proper divisors (2159491683373).

6401120120211 is a wasteful number, since it uses less digits than its factorization.

6401120120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446244161.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 6401120120211 its reverse (1120210211046), we get a palindrome (7521330331257).

The spelling of 6401120120211 in words is "six trillion, four hundred one billion, one hundred twenty million, one hundred twenty thousand, two hundred eleven".