6401120120210 has 16 divisors (see below), whose sum is σ = 11524671748800. Its totient is φ = 2559857929776.

The previous prime is 6401120120099. The next prime is 6401120120249. The reversal of 6401120120210 is 120210211046.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73719230 + ... + 73806009.

It is an arithmetic number, because the mean of its divisors is an integer number (720291984300).

Almost surely, 2^{6401120120210} is an apocalyptic number.

6401120120210 is a deficient number, since it is larger than the sum of its proper divisors (5123551628590).

6401120120210 is a wasteful number, since it uses less digits than its factorization.

6401120120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147529585.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 6401120120210 its reverse (120210211046), we get a palindrome (6521330331256).

The spelling of 6401120120210 in words is "six trillion, four hundred one billion, one hundred twenty million, one hundred twenty thousand, two hundred ten".